89901893 has 2 divisors, whose sum is σ = 89901894. Its totient is φ = 89901892.

The previous prime is 89901883. The next prime is 89901907. The reversal of 89901893 is 39810998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79156609 + 10745284 = 8897^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 89901893 - 2²⁴ = 73124677 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89901803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44950946 + 44950947.

It is an arithmetic number, because the mean of its divisors is an integer number (44950947).

Almost surely, 2^89901893 is an apocalyptic number.

It is an amenable number.

89901893 is a deficient number, since it is larger than the sum of its proper divisors (1).

89901893 is an equidigital number, since it uses as much as digits as its factorization.

89901893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 89901893 is about 9481.6608777155. The cubic root of 89901893 is about 447.9775794610.

The spelling of 89901893 in words is "eighty-nine million, nine hundred one thousand, eight hundred ninety-three".