72685323 has 16 divisors (see below), whose sum is σ = 107827200. Its totient is φ = 48391560.

The previous prime is 72685309. The next prime is 72685331. The reversal of 72685323 is 32358627.

It is not a de Polignac number, because 72685323 - 2⁴ = 72685307 is a prime.

It is a super-2 number, since 2×72685323² = 10566312359228658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72685373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26758 + ... + 29348.

It is an arithmetic number, because the mean of its divisors is an integer number (6739200).

Almost surely, 2^72685323 is an apocalyptic number.

72685323 is a deficient number, since it is larger than the sum of its proper divisors (35141877).

72685323 is a wasteful number, since it uses less digits than its factorization.

72685323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639 (or 3633 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 72685323 is about 8525.5687786798. The cubic root of 72685323 is about 417.3325332630.

The spelling of 72685323 in words is "seventy-two million, six hundred eighty-five thousand, three hundred twenty-three".