89922891 has 8 divisors (see below), whose sum is σ = 122448384. Its totient is φ = 58673000.

The previous prime is 89922883. The next prime is 89922983. The reversal of 89922891 is 19822998.

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 89922891 - 2³ = 89922883 is a prime.

It is a super-2 number, since 2×89922891² = 16172252651595762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89922891.

It is not an unprimeable number, because it can be changed into a prime (89922871) 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, 318735 + ... + 319016.

It is an arithmetic number, because the mean of its divisors is an integer number (15306048).

Almost surely, 2^89922891 is an apocalyptic number.

89922891 is a deficient number, since it is larger than the sum of its proper divisors (32525493).

89922891 is a wasteful number, since it uses less digits than its factorization.

89922891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637801.

The product of its digits is 186624, while the sum is 48.

The square root of 89922891 is about 9482.7681085219. The cubic root of 89922891 is about 448.0124541473.

The spelling of 89922891 in words is "eighty-nine million, nine hundred twenty-two thousand, eight hundred ninety-one".