72499736 has 16 divisors (see below), whose sum is σ = 136047600. Its totient is φ = 36220384.

The previous prime is 72499729. The next prime is 72499771. The reversal of 72499736 is 63799427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9566 + ... + 15378.

It is an arithmetic number, because the mean of its divisors is an integer number (8502975).

Almost surely, 2^72499736 is an apocalyptic number.

It is an amenable number.

72499736 is a deficient number, since it is larger than the sum of its proper divisors (63547864).

72499736 is a wasteful number, since it uses less digits than its factorization.

72499736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378 (or 7374 counting only the distinct ones).

The product of its digits is 571536, while the sum is 47.

The square root of 72499736 is about 8514.6776803353. The cubic root of 72499736 is about 416.9770396450.

The spelling of 72499736 in words is "seventy-two million, four hundred ninety-nine thousand, seven hundred thirty-six".