672712272 has 30 divisors (see below), whose sum is σ = 1882660442. Its totient is φ = 224237376.

The previous prime is 672712267. The next prime is 672712273. The reversal of 672712272 is 272217276.

It can be written as a sum of positive squares in only one way, i.e., 358572096 + 314140176 = 18936^2 + 17724^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672712273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2335663 + ... + 2335950.

Almost surely, 2^672712272 is an apocalyptic number.

It is an amenable number.

672712272 is an abundant number, since it is smaller than the sum of its proper divisors (1209948170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672712272 is a wasteful number, since it uses less digits than its factorization.

672712272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671627 (or 4671618 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 672712272 is about 25936.6973996305. The cubic root of 672712272 is about 876.2131838693.

The spelling of 672712272 in words is "six hundred seventy-two million, seven hundred twelve thousand, two hundred seventy-two".