72868507 has 8 divisors (see below), whose sum is σ = 76280832. Its totient is φ = 69522600.

The previous prime is 72868469. The next prime is 72868513. The reversal of 72868507 is 70586827.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72868507 - 2⁷ = 72868379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72868547) 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, 14353 + ... + 18754.

It is an arithmetic number, because the mean of its divisors is an integer number (9535104).

Almost surely, 2^72868507 is an apocalyptic number.

72868507 is a deficient number, since it is larger than the sum of its proper divisors (3412325).

72868507 is a wasteful number, since it uses less digits than its factorization.

72868507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33209.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 72868507 is about 8536.3052311876. The cubic root of 72868507 is about 417.6828309873.

The spelling of 72868507 in words is "seventy-two million, eight hundred sixty-eight thousand, five hundred seven".