72988113 has 16 divisors (see below), whose sum is σ = 106315200. Its totient is φ = 44172480.

The previous prime is 72988109. The next prime is 72988117. The reversal of 72988113 is 31188927.

It is an interprime number because it is at equal distance from previous prime (72988109) and next prime (72988117).

It is not a de Polignac number, because 72988113 - 2² = 72988109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72988117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34243 + ... + 36311.

It is an arithmetic number, because the mean of its divisors is an integer number (6644700).

Almost surely, 2^72988113 is an apocalyptic number.

It is an amenable number.

72988113 is a deficient number, since it is larger than the sum of its proper divisors (33327087).

72988113 is a wasteful number, since it uses less digits than its factorization.

72988113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its digits is 24192, while the sum is 39.

The square root of 72988113 is about 8543.3080829384. The cubic root of 72988113 is about 417.9112335642.

The spelling of 72988113 in words is "seventy-two million, nine hundred eighty-eight thousand, one hundred thirteen".