72870582 has 16 divisors (see below), whose sum is σ = 145846512. Its totient is φ = 24272640.

The previous prime is 72870569. The next prime is 72870593. The reversal of 72870582 is 28507827.

It is a self number, because there is not a number n which added to its sum of digits gives 72870582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6798 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (9115407).

Almost surely, 2^72870582 is an apocalyptic number.

72870582 is an abundant number, since it is smaller than the sum of its proper divisors (72975930).

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

72870582 is a wasteful number, since it uses less digits than its factorization.

72870582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 72870582 is about 8536.4267700250. The cubic root of 72870582 is about 417.6867955882.

The spelling of 72870582 in words is "seventy-two million, eight hundred seventy thousand, five hundred eighty-two".