89841431 has 2 divisors, whose sum is σ = 89841432. Its totient is φ = 89841430.

The previous prime is 89841403. The next prime is 89841467. The reversal of 89841431 is 13414898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89841431 - 2²² = 85647127 is a prime.

It is a super-2 number, since 2×89841431² = 16142965448255522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89840431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44920715 + 44920716.

It is an arithmetic number, because the mean of its divisors is an integer number (44920716).

Almost surely, 2^89841431 is an apocalyptic number.

89841431 is a deficient number, since it is larger than the sum of its proper divisors (1).

89841431 is an equidigital number, since it uses as much as digits as its factorization.

89841431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 89841431 is about 9478.4719760096. The cubic root of 89841431 is about 447.8771303537.

The spelling of 89841431 in words is "eighty-nine million, eight hundred forty-one thousand, four hundred thirty-one".