89739131 has 2 divisors, whose sum is σ = 89739132. Its totient is φ = 89739130.

The previous prime is 89739127. The next prime is 89739157. The reversal of 89739131 is 13193798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89739131 - 2² = 89739127 is a prime.

It is a super-2 number, since 2×89739131² = 16106223265270322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89739731) 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, 44869565 + 44869566.

It is an arithmetic number, because the mean of its divisors is an integer number (44869566).

Almost surely, 2^89739131 is an apocalyptic number.

89739131 is a deficient number, since it is larger than the sum of its proper divisors (1).

89739131 is an equidigital number, since it uses as much as digits as its factorization.

89739131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 89739131 is about 9473.0739994998. The cubic root of 89739131 is about 447.7070706109.

The spelling of 89739131 in words is "eighty-nine million, seven hundred thirty-nine thousand, one hundred thirty-one".