72740951 has 6 divisors (see below), whose sum is σ = 73634880. Its totient is φ = 71857748.

The previous prime is 72740933. The next prime is 72740959. The reversal of 72740951 is 15904727.

It is a de Polignac number, because none of the positive numbers 2^k-72740951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72740959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1610 + ... + 12168.

It is an arithmetic number, because the mean of its divisors is an integer number (12272480).

Almost surely, 2^72740951 is an apocalyptic number.

72740951 is a deficient number, since it is larger than the sum of its proper divisors (893929).

72740951 is an equidigital number, since it uses as much as digits as its factorization.

72740951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725 (or 10642 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 72740951 is about 8528.8305763452. The cubic root of 72740951 is about 417.4389713226.

The spelling of 72740951 in words is "seventy-two million, seven hundred forty thousand, nine hundred fifty-one".