72737124 has 12 divisors (see below), whose sum is σ = 169719984. Its totient is φ = 24245704.

The previous prime is 72737113. The next prime is 72737183. The reversal of 72737124 is 42173727.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 3030702 + ... + 3030725.

It is an arithmetic number, because the mean of its divisors is an integer number (14143332).

Almost surely, 2^72737124 is an apocalyptic number.

It is an amenable number.

72737124 is an abundant number, since it is smaller than the sum of its proper divisors (96982860).

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

72737124 is a wasteful number, since it uses less digits than its factorization.

72737124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061434 (or 6061432 counting only the distinct ones).

The product of its digits is 16464, while the sum is 33.

The square root of 72737124 is about 8528.6062167273. The cubic root of 72737124 is about 417.4316505176.

The spelling of 72737124 in words is "seventy-two million, seven hundred thirty-seven thousand, one hundred twenty-four".