72988623 has 24 divisors (see below), whose sum is σ = 107452800. Its totient is φ = 47733840.

The previous prime is 72988613. The next prime is 72988631. The reversal of 72988623 is 32688927.

It is not a de Polignac number, because 72988623 - 2⁴ = 72988607 is a prime.

It is a super-2 number, since 2×72988623² = 10654678174872258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72988613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148408 + ... + 148898.

It is an arithmetic number, because the mean of its divisors is an integer number (4477200).

Almost surely, 2^72988623 is an apocalyptic number.

72988623 is a deficient number, since it is larger than the sum of its proper divisors (34464177).

72988623 is a wasteful number, since it uses less digits than its factorization.

72988623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 72988623 is about 8543.3379308090. The cubic root of 72988623 is about 417.9122069384.

The spelling of 72988623 in words is "seventy-two million, nine hundred eighty-eight thousand, six hundred twenty-three".