72967686 has 16 divisors (see below), whose sum is σ = 159202368. Its totient is φ = 22111400.

The previous prime is 72967679. The next prime is 72967691. The reversal of 72967686 is 68676927.

72967686 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552720 + ... + 552851.

It is an arithmetic number, because the mean of its divisors is an integer number (9950148).

Almost surely, 2^72967686 is an apocalyptic number.

72967686 is an abundant number, since it is smaller than the sum of its proper divisors (86234682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72967686 is a wasteful number, since it uses less digits than its factorization.

72967686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105587.

The product of its digits is 1524096, while the sum is 51.

The square root of 72967686 is about 8542.1125021859. The cubic root of 72967686 is about 417.8722433373.

The spelling of 72967686 in words is "seventy-two million, nine hundred sixty-seven thousand, six hundred eighty-six".