672765 has 8 divisors (see below), whose sum is σ = 1076448. Its totient is φ = 358800.

The previous prime is 672757. The next prime is 672767. The reversal of 672765 is 567276.

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

It is not a de Polignac number, because 672765 - 2³ = 672757 is a prime.

It is a super-2 number, since 2×672765² = 905225490450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 672765.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22411 + ... + 22440.

It is an arithmetic number, because the mean of its divisors is an integer number (134556).

2⁶⁷²⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

672765 is a deficient number, since it is larger than the sum of its proper divisors (403683).

672765 is a wasteful number, since it uses less digits than its factorization.

672765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44859.

The product of its digits is 17640, while the sum is 33.

The square root of 672765 is about 820.2225307805. Note that the first 3 decimals coincide. The cubic root of 672765 is about 87.6236076154.

It can be divided in two parts, 6 and 72765, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 672765 in words is "six hundred seventy-two thousand, seven hundred sixty-five".