89021031 has 24 divisors (see below), whose sum is σ = 131561472. Its totient is φ = 53499600.

The previous prime is 89021011. The next prime is 89021033. The reversal of 89021031 is 13012098.

It is a de Polignac number, because none of the positive numbers 2^k-89021031 is a prime.

It is a super-2 number, since 2×89021031² = 15849487920605922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89020992 and 89021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89021033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45136 + ... + 47066.

It is an arithmetic number, because the mean of its divisors is an integer number (5481728).

Almost surely, 2^89021031 is an apocalyptic number.

89021031 is a deficient number, since it is larger than the sum of its proper divisors (42540441).

89021031 is a wasteful number, since it uses less digits than its factorization.

89021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2072 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 89021031 is about 9435.0957069868. The cubic root of 89021031 is about 446.5096745993.

The spelling of 89021031 in words is "eighty-nine million, twenty-one thousand, thirty-one".