72107107 has 8 divisors (see below), whose sum is σ = 73232640. Its totient is φ = 70989960.

The previous prime is 72107089. The next prime is 72107111. The reversal of 72107107 is 70170127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72107107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72147107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16482 + ... + 20392.

It is an arithmetic number, because the mean of its divisors is an integer number (9154080).

Almost surely, 2^72107107 is an apocalyptic number.

72107107 is a deficient number, since it is larger than the sum of its proper divisors (1125533).

72107107 is a wasteful number, since it uses less digits than its factorization.

72107107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 72107107 is about 8491.5903693007. The cubic root of 72107107 is about 416.2229508646. Note that the first 3 decimals are identical.

The spelling of 72107107 in words is "seventy-two million, one hundred seven thousand, one hundred seven".