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672764 = 22792129

672764 has 12 divisors (see below), whose sum is σ = 1192800. Its totient is φ = 331968.

The previous prime is 672757. The next prime is 672767. The reversal of 672764 is 467276.

672764 = T89 + T90 + ... + T167.

It is a happy number.

It is a super-2 number, since 2×6727642 = 905222799392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 672764.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 672764.

It is not an unprimeable number, because it can be changed into a prime (672767) by changing a digit.

672764 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (99400).

2672764 is an apocalyptic number.

It is an amenable number.

672764 is a deficient number, since it is larger than the sum of its proper divisors (520036).

672764 is a wasteful number, since it uses less digits than its factorization.

672764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212 (or 2210 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 672764 is about 820.2219211896. The cubic root of 672764 is about 87.6235642007.

The spelling of 672764 in words is "six hundred seventy-two thousand, seven hundred sixty-four".

Divisors: 1 2 4 79 158 316 2129 4258 8516 168191 336382 672764