672788 has 6 divisors (see below), whose sum is σ = 1177386. Its totient is φ = 336392.

The previous prime is 672787. The next prime is 672799. The reversal of 672788 is 887276.

It can be written as a sum of positive squares in only one way, i.e., 643204 + 29584 = 802^2 + 172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84095 + ... + 84102.

It is an arithmetic number, because the mean of its divisors is an integer number (196231).

2⁶⁷²⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

672788 is a deficient number, since it is larger than the sum of its proper divisors (504598).

672788 is a wasteful number, since it uses less digits than its factorization.

672788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168201 (or 168199 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 672788 is about 820.2365512460. The cubic root of 672788 is about 87.6246061413.

The spelling of 672788 in words is "six hundred seventy-two thousand, seven hundred eighty-eight".