72717514 has 4 divisors (see below), whose sum is σ = 109076274. Its totient is φ = 36358756.

The previous prime is 72717511. The next prime is 72717553. The reversal of 72717514 is 41571727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71318025 + 1399489 = 8445^2 + 1183^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72717514.

It is not an unprimeable number, because it can be changed into a prime (72717511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18179377 + ... + 18179380.

Almost surely, 2^72717514 is an apocalyptic number.

72717514 is a deficient number, since it is larger than the sum of its proper divisors (36358760).

72717514 is a wasteful number, since it uses less digits than its factorization.

72717514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36358759.

The product of its digits is 13720, while the sum is 34.

The square root of 72717514 is about 8527.4564789273. The cubic root of 72717514 is about 417.3941338183.

The spelling of 72717514 in words is "seventy-two million, seven hundred seventeen thousand, five hundred fourteen".