88690891 has 8 divisors (see below), whose sum is σ = 89384960. Its totient is φ = 87999912.

The previous prime is 88690873. The next prime is 88690949. The reversal of 88690891 is 19809688.

It is a happy number.

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 88690891 - 2²³ = 80302283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88690871) 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, 102820 + ... + 103678.

It is an arithmetic number, because the mean of its divisors is an integer number (11173120).

Almost surely, 2^88690891 is an apocalyptic number.

88690891 is a deficient number, since it is larger than the sum of its proper divisors (694069).

88690891 is a wasteful number, since it uses less digits than its factorization.

88690891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 88690891 is about 9417.5841381960. The cubic root of 88690891 is about 445.9570212696.

The spelling of 88690891 in words is "eighty-eight million, six hundred ninety thousand, eight hundred ninety-one".