72952907 has 4 divisors (see below), whose sum is σ = 73031376. Its totient is φ = 72874440.

The previous prime is 72952903. The next prime is 72952927. The reversal of 72952907 is 70925927.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72952907 - 2² = 72952903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72952903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37823 + ... + 39704.

It is an arithmetic number, because the mean of its divisors is an integer number (18257844).

Almost surely, 2^72952907 is an apocalyptic number.

72952907 is a deficient number, since it is larger than the sum of its proper divisors (78469).

72952907 is an equidigital number, since it uses as much as digits as its factorization.

72952907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78468.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 72952907 is about 8541.2473913358. The cubic root of 72952907 is about 417.8440292459.

The spelling of 72952907 in words is "seventy-two million, nine hundred fifty-two thousand, nine hundred seven".