72702650 has 12 divisors (see below), whose sum is σ = 135227022. Its totient is φ = 29081040.

The previous prime is 72702649. The next prime is 72702661. The reversal of 72702650 is 5620727.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50225569 + 22477081 = 7087^2 + 4741^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726977 + ... + 727076.

Almost surely, 2^72702650 is an apocalyptic number.

72702650 is a deficient number, since it is larger than the sum of its proper divisors (62524372).

72702650 is a wasteful number, since it uses less digits than its factorization.

72702650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454065 (or 1454060 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 72702650 is about 8526.5848966629. The cubic root of 72702650 is about 417.3656923932.

The spelling of 72702650 in words is "seventy-two million, seven hundred two thousand, six hundred fifty".