72486590 has 16 divisors (see below), whose sum is σ = 142337520. Its totient is φ = 26358720.

The previous prime is 72486569. The next prime is 72486619. The reversal of 72486590 is 9568427.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329375 + ... + 329594.

It is an arithmetic number, because the mean of its divisors is an integer number (8896095).

Almost surely, 2^72486590 is an apocalyptic number.

72486590 is a deficient number, since it is larger than the sum of its proper divisors (69850930).

72486590 is a wasteful number, since it uses less digits than its factorization.

72486590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658987.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 72486590 is about 8513.9056842321. The cubic root of 72486590 is about 416.9518353624.

The spelling of 72486590 in words is "seventy-two million, four hundred eighty-six thousand, five hundred ninety".