72714647 has 4 divisors (see below), whose sum is σ = 73434696. Its totient is φ = 71994600.

The previous prime is 72714637. The next prime is 72714659. The reversal of 72714647 is 74641727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74641727 = 101 ⋅739027.

It is a cyclic number.

It is not a de Polignac number, because 72714647 - 2¹⁸ = 72452503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72714647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72714617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359873 + ... + 360074.

It is an arithmetic number, because the mean of its divisors is an integer number (18358674).

Almost surely, 2^72714647 is an apocalyptic number.

72714647 is a deficient number, since it is larger than the sum of its proper divisors (720049).

72714647 is a wasteful number, since it uses less digits than its factorization.

72714647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720048.

The product of its digits is 65856, while the sum is 38.

The square root of 72714647 is about 8527.2883732169. The cubic root of 72714647 is about 417.3886482773.

The spelling of 72714647 in words is "seventy-two million, seven hundred fourteen thousand, six hundred forty-seven".