72625917 has 16 divisors (see below), whose sum is σ = 119181440. Its totient is φ = 38308032.

The previous prime is 72625907. The next prime is 72625939. The reversal of 72625917 is 71952627.

It is not a de Polignac number, because 72625917 - 2⁸ = 72625661 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72625907) 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, 132742 + ... + 133287.

It is an arithmetic number, because the mean of its divisors is an integer number (7448840).

Almost surely, 2^72625917 is an apocalyptic number.

It is an amenable number.

72625917 is a deficient number, since it is larger than the sum of its proper divisors (46555523).

72625917 is a wasteful number, since it uses less digits than its factorization.

72625917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266052.

The product of its digits is 52920, while the sum is 39.

The square root of 72625917 is about 8522.0840760931. The cubic root of 72625917 is about 417.2188064346.

The spelling of 72625917 in words is "seventy-two million, six hundred twenty-five thousand, nine hundred seventeen".