89958919 has 2 divisors, whose sum is σ = 89958920. Its totient is φ = 89958918.

The previous prime is 89958907. The next prime is 89958923. The reversal of 89958919 is 91985998.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89958919 is a prime.

It is a super-2 number, since 2×89958919² = 16185214215297122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89958929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44979459 + 44979460.

It is an arithmetic number, because the mean of its divisors is an integer number (44979460).

Almost surely, 2^89958919 is an apocalyptic number.

89958919 is a deficient number, since it is larger than the sum of its proper divisors (1).

89958919 is an equidigital number, since it uses as much as digits as its factorization.

89958919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 58.

The square root of 89958919 is about 9484.6675745648. The cubic root of 89958919 is about 448.0722788754.

The spelling of 89958919 in words is "eighty-nine million, nine hundred fifty-eight thousand, nine hundred nineteen".