72886605 has 16 divisors (see below), whose sum is σ = 127220544. Its totient is φ = 35338880.

The previous prime is 72886601. The next prime is 72886661. The reversal of 72886605 is 50668827.

It is not a de Polignac number, because 72886605 - 2² = 72886601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72886601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 220704 + ... + 221033.

It is an arithmetic number, because the mean of its divisors is an integer number (7951284).

Almost surely, 2^72886605 is an apocalyptic number.

It is an amenable number.

72886605 is a deficient number, since it is larger than the sum of its proper divisors (54333939).

72886605 is a wasteful number, since it uses less digits than its factorization.

72886605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441756.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 72886605 is about 8537.3652258762. The cubic root of 72886605 is about 417.7174074157.

The spelling of 72886605 in words is "seventy-two million, eight hundred eighty-six thousand, six hundred five".