72127984 has 10 divisors (see below), whose sum is σ = 139748000. Its totient is φ = 36063984.

The previous prime is 72127981. The next prime is 72127987. The reversal of 72127984 is 48972127.

It is an interprime number because it is at equal distance from previous prime (72127981) and next prime (72127987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72127981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2253984 + ... + 2254015.

It is an arithmetic number, because the mean of its divisors is an integer number (13974800).

Almost surely, 2^72127984 is an apocalyptic number.

It is an amenable number.

72127984 is a deficient number, since it is larger than the sum of its proper divisors (67620016).

72127984 is a wasteful number, since it uses less digits than its factorization.

72127984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508007 (or 4508001 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 72127984 is about 8492.8195553656. The cubic root of 72127984 is about 416.2631163371.

The spelling of 72127984 in words is "seventy-two million, one hundred twenty-seven thousand, nine hundred eighty-four".