672755 has 8 divisors (see below), whose sum is σ = 812592. Its totient is φ = 534688.

The previous prime is 672743. The next prime is 672757. The reversal of 672755 is 557276.

672755 = 135² + 136² + ... + 164².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672755 - 2⁸ = 672499 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 672755.

It is not an unprimeable number, because it can be changed into a prime (672757) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 644 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (101574).

2⁶⁷²⁷⁵⁵ is an apocalyptic number.

672755 is a deficient number, since it is larger than the sum of its proper divisors (139837).

672755 is a wasteful number, since it uses less digits than its factorization.

672755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its digits is 14700, while the sum is 32.

The square root of 672755 is about 820.2164348512. The cubic root of 672755 is about 87.6231734665.

The spelling of 672755 in words is "six hundred seventy-two thousand, seven hundred fifty-five".