88956991 has 8 divisors (see below), whose sum is σ = 92063664. Its totient is φ = 85887360.

The previous prime is 88956983. The next prime is 88957009. The reversal of 88956991 is 19965988.

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

It is not a de Polignac number, because 88956991 - 2³ = 88956983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88956941) 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, 4330 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (11507958).

Almost surely, 2^88956991 is an apocalyptic number.

88956991 is a deficient number, since it is larger than the sum of its proper divisors (3106673).

88956991 is a wasteful number, since it uses less digits than its factorization.

88956991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18521.

The product of its digits is 1399680, while the sum is 55.

The square root of 88956991 is about 9431.7013841618. The cubic root of 88956991 is about 446.4025787862.

The spelling of 88956991 in words is "eighty-eight million, nine hundred fifty-six thousand, nine hundred ninety-one".