72397625 has 16 divisors (see below), whose sum is σ = 92282112. Its totient is φ = 56681200.

The previous prime is 72397603. The next prime is 72397627. The reversal of 72397625 is 52679327.

It is not a de Polignac number, because 72397625 - 2⁶ = 72397561 is a prime.

It is a super-2 number, since 2×72397625² = 10482832211281250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72397627) 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, 287 + ... + 12036.

It is an arithmetic number, because the mean of its divisors is an integer number (5767632).

Almost surely, 2^72397625 is an apocalyptic number.

It is an amenable number.

72397625 is a deficient number, since it is larger than the sum of its proper divisors (19884487).

72397625 is a wasteful number, since it uses less digits than its factorization.

72397625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12385 (or 12375 counting only the distinct ones).

The product of its digits is 158760, while the sum is 41.

The square root of 72397625 is about 8508.6793922441. The cubic root of 72397625 is about 416.7811862995.

The spelling of 72397625 in words is "seventy-two million, three hundred ninety-seven thousand, six hundred twenty-five".