72347075 has 12 divisors (see below), whose sum is σ = 93611568. Its totient is φ = 55360800.

The previous prime is 72347063. The next prime is 72347089. The reversal of 72347075 is 57074327.

It is not a de Polignac number, because 72347075 - 2⁸ = 72346819 is a prime.

It is a super-2 number, since 2×72347075² = 10468198522111250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62336 + ... + 63485.

It is an arithmetic number, because the mean of its divisors is an integer number (7800964).

Almost surely, 2^72347075 is an apocalyptic number.

72347075 is a deficient number, since it is larger than the sum of its proper divisors (21264493).

72347075 is a wasteful number, since it uses less digits than its factorization.

72347075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125854 (or 125849 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 72347075 is about 8505.7083773193. The cubic root of 72347075 is about 416.6841610432.

The spelling of 72347075 in words is "seventy-two million, three hundred forty-seven thousand, seventy-five".