89898719 has 2 divisors, whose sum is σ = 89898720. Its totient is φ = 89898718.

The previous prime is 89898707. The next prime is 89898763. The reversal of 89898719 is 91789898.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89898719 is a prime.

It is a super-2 number, since 2×89898719² = 16163559355681922, 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 (89898769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44949359 + 44949360.

It is an arithmetic number, because the mean of its divisors is an integer number (44949360).

Almost surely, 2^89898719 is an apocalyptic number.

89898719 is a deficient number, since it is larger than the sum of its proper divisors (1).

89898719 is an equidigital number, since it uses as much as digits as its factorization.

89898719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 59.

The square root of 89898719 is about 9481.4935004987. The cubic root of 89898719 is about 447.9723074268.

The spelling of 89898719 in words is "eighty-nine million, eight hundred ninety-eight thousand, seven hundred nineteen".