89590531 has 2 divisors, whose sum is σ = 89590532. Its totient is φ = 89590530.

The previous prime is 89590519. The next prime is 89590549. The reversal of 89590531 is 13509598.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89590531 is a prime.

It is a super-2 number, since 2×89590531² = 16052926489723922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89590231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44795265 + 44795266.

It is an arithmetic number, because the mean of its divisors is an integer number (44795266).

Almost surely, 2^89590531 is an apocalyptic number.

89590531 is a deficient number, since it is larger than the sum of its proper divisors (1).

89590531 is an equidigital number, since it uses as much as digits as its factorization.

89590531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 89590531 is about 9465.2274668916. The cubic root of 89590531 is about 447.4598130844.

The spelling of 89590531 in words is "eighty-nine million, five hundred ninety thousand, five hundred thirty-one".