88972591 has 8 divisors (see below), whose sum is σ = 89624304. Its totient is φ = 88323840.

The previous prime is 88972589. The next prime is 88972601. The reversal of 88972591 is 19527988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88972591 - 2¹ = 88972589 is a prime.

It is a super-2 number, since 2×88972591² = 15832243898506562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88970591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107961 + ... + 108781.

It is an arithmetic number, because the mean of its divisors is an integer number (11203038).

Almost surely, 2^88972591 is an apocalyptic number.

88972591 is a deficient number, since it is larger than the sum of its proper divisors (651713).

88972591 is a wasteful number, since it uses less digits than its factorization.

88972591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its digits is 362880, while the sum is 49.

The square root of 88972591 is about 9432.5283461011. The cubic root of 88972591 is about 446.4286718196.

The spelling of 88972591 in words is "eighty-eight million, nine hundred seventy-two thousand, five hundred ninety-one".