72785375 has 32 divisors (see below), whose sum is σ = 100009728. Its totient is φ = 52550400.

The previous prime is 72785353. The next prime is 72785399. The reversal of 72785375 is 57358727.

It is not a de Polignac number, because 72785375 - 2⁶ = 72785311 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75899 + ... + 76851.

It is an arithmetic number, because the mean of its divisors is an integer number (3125304).

Almost surely, 2^72785375 is an apocalyptic number.

72785375 is a deficient number, since it is larger than the sum of its proper divisors (27224353).

72785375 is a wasteful number, since it uses less digits than its factorization.

72785375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1018 counting only the distinct ones).

The product of its digits is 411600, while the sum is 44.

The square root of 72785375 is about 8531.4345218140. The cubic root of 72785375 is about 417.5239327956.

The spelling of 72785375 in words is "seventy-two million, seven hundred eighty-five thousand, three hundred seventy-five".