72312385 has 8 divisors (see below), whose sum is σ = 91342080. Its totient is φ = 54805104.

The previous prime is 72312379. The next prime is 72312521. The reversal of 72312385 is 58321327.

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 72312385 - 2⁵ = 72312353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380497 + ... + 380686.

It is an arithmetic number, because the mean of its divisors is an integer number (11417760).

Almost surely, 2^72312385 is an apocalyptic number.

It is an amenable number.

72312385 is a deficient number, since it is larger than the sum of its proper divisors (19029695).

72312385 is a wasteful number, since it uses less digits than its factorization.

72312385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761207.

The product of its digits is 10080, while the sum is 31.

The square root of 72312385 is about 8503.6689140629. The cubic root of 72312385 is about 416.6175511884.

The spelling of 72312385 in words is "seventy-two million, three hundred twelve thousand, three hundred eighty-five".