72714645 has 32 divisors (see below), whose sum is σ = 129651840. Its totient is φ = 38666880.

The previous prime is 72714637. The next prime is 72714659. The reversal of 72714645 is 54641727.

72714645 is a `hidden beast` number, since 7 + 2 + 7 + 1 + 4 + 645 = 666.

It is not a de Polignac number, because 72714645 - 2³ = 72714637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65737 + ... + 66833.

It is an arithmetic number, because the mean of its divisors is an integer number (4051620).

Almost surely, 2^72714645 is an apocalyptic number.

It is an amenable number.

72714645 is a deficient number, since it is larger than the sum of its proper divisors (56937195).

72714645 is a wasteful number, since it uses less digits than its factorization.

72714645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1596 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 72714645 is about 8527.2882559463. The cubic root of 72714645 is about 417.3886444506.

The spelling of 72714645 in words is "seventy-two million, seven hundred fourteen thousand, six hundred forty-five".