72746715 has 16 divisors (see below), whose sum is σ = 116640000. Its totient is φ = 38716512.

The previous prime is 72746711. The next prime is 72746719. The reversal of 72746715 is 51764727.

It is an interprime number because it is at equal distance from previous prime (72746711) and next prime (72746719).

It is not a de Polignac number, because 72746715 - 2² = 72746711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72746711) 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 15 ways as a sum of consecutive naturals, for example, 2626 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (7290000).

Almost surely, 2^72746715 is an apocalyptic number.

72746715 is a deficient number, since it is larger than the sum of its proper divisors (43893285).

72746715 is a wasteful number, since it uses less digits than its factorization.

72746715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226.

The product of its digits is 82320, while the sum is 39.

The square root of 72746715 is about 8529.1684823317. The cubic root of 72746715 is about 417.4499969995.

The spelling of 72746715 in words is "seventy-two million, seven hundred forty-six thousand, seven hundred fifteen".