89862021 has 16 divisors (see below), whose sum is σ = 133329600. Its totient is φ = 59817744.

The previous prime is 89862013. The next prime is 89862053. The reversal of 89862021 is 12026898.

89862021 is a `hidden beast` number, since 8 + 9 + 8 + 620 + 21 = 666.

It is not a de Polignac number, because 89862021 - 2³ = 89862013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89861021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19135 + ... + 23363.

It is an arithmetic number, because the mean of its divisors is an integer number (8333100).

Almost surely, 2^89862021 is an apocalyptic number.

It is an amenable number.

89862021 is a deficient number, since it is larger than the sum of its proper divisors (43467579).

89862021 is a wasteful number, since it uses less digits than its factorization.

89862021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 89862021 is about 9479.5580593190. The cubic root of 89862021 is about 447.9113428012.

The spelling of 89862021 in words is "eighty-nine million, eight hundred sixty-two thousand, twenty-one".