89751901 has 2 divisors, whose sum is σ = 89751902. Its totient is φ = 89751900.

The previous prime is 89751887. The next prime is 89751919. The reversal of 89751901 is 10915798.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56700900 + 33051001 = 7530^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 89751901 - 2²⁵ = 56197469 is a prime.

It is a super-2 number, since 2×89751901² = 16110807466227602, 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 (89751971) 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, 44875950 + 44875951.

It is an arithmetic number, because the mean of its divisors is an integer number (44875951).

Almost surely, 2^89751901 is an apocalyptic number.

It is an amenable number.

89751901 is a deficient number, since it is larger than the sum of its proper divisors (1).

89751901 is an equidigital number, since it uses as much as digits as its factorization.

89751901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 89751901 is about 9473.7479911596. The cubic root of 89751901 is about 447.7283060447.

The spelling of 89751901 in words is "eighty-nine million, seven hundred fifty-one thousand, nine hundred one".