89010431 has 2 divisors, whose sum is σ = 89010432. Its totient is φ = 89010430.

The previous prime is 89010353. The next prime is 89010461. The reversal of 89010431 is 13401098.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89010431 is a prime.

It is a super-2 number, since 2×89010431² = 15845713653611522, 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 89010431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89010461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44505215 + 44505216.

It is an arithmetic number, because the mean of its divisors is an integer number (44505216).

Almost surely, 2^89010431 is an apocalyptic number.

89010431 is a deficient number, since it is larger than the sum of its proper divisors (1).

89010431 is an equidigital number, since it uses as much as digits as its factorization.

89010431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 89010431 is about 9434.5339577533. The cubic root of 89010431 is about 446.4919514823.

The spelling of 89010431 in words is "eighty-nine million, ten thousand, four hundred thirty-one".