72615850 has 12 divisors (see below), whose sum is σ = 135065574. Its totient is φ = 29046320.

The previous prime is 72615841. The next prime is 72615911. The reversal of 72615850 is 5851627.

It can be written as a sum of positive squares in 3 ways, for example, as 43811161 + 28804689 = 6619^2 + 5367^2 .

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 5 ways as a sum of consecutive naturals, for example, 726109 + ... + 726208.

Almost surely, 2^72615850 is an apocalyptic number.

72615850 is a deficient number, since it is larger than the sum of its proper divisors (62449724).

72615850 is a wasteful number, since it uses less digits than its factorization.

72615850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452329 (or 1452324 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 72615850 is about 8521.4934137157. The cubic root of 72615850 is about 417.1995280283.

The spelling of 72615850 in words is "seventy-two million, six hundred fifteen thousand, eight hundred fifty".