89713919 has 2 divisors, whose sum is σ = 89713920. Its totient is φ = 89713918.

The previous prime is 89713831. The next prime is 89713933. The reversal of 89713919 is 91931798.

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-89713919 is a prime.

It is a super-2 number, since 2×89713919² = 16097174524677122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89713979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44856959 + 44856960.

It is an arithmetic number, because the mean of its divisors is an integer number (44856960).

Almost surely, 2^89713919 is an apocalyptic number.

89713919 is a deficient number, since it is larger than the sum of its proper divisors (1).

89713919 is an equidigital number, since it uses as much as digits as its factorization.

89713919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 47.

The square root of 89713919 is about 9471.7431869746. The cubic root of 89713919 is about 447.6651392640.

The spelling of 89713919 in words is "eighty-nine million, seven hundred thirteen thousand, nine hundred nineteen".