72906486 has 32 divisors (see below), whose sum is σ = 148262400. Its totient is φ = 23897280.

The previous prime is 72906479. The next prime is 72906497. The reversal of 72906486 is 68460927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165855 + ... + 166293.

It is an arithmetic number, because the mean of its divisors is an integer number (4633200).

Almost surely, 2^72906486 is an apocalyptic number.

72906486 is an abundant number, since it is smaller than the sum of its proper divisors (75355914).

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

72906486 is a wasteful number, since it uses less digits than its factorization.

72906486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 72906486 is about 8538.5294986900. The cubic root of 72906486 is about 417.7553836887.

The spelling of 72906486 in words is "seventy-two million, nine hundred six thousand, four hundred eighty-six".