89538961 has 2 divisors, whose sum is σ = 89538962. Its totient is φ = 89538960.

The previous prime is 89538941. The next prime is 89539003. The reversal of 89538961 is 16983598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81450625 + 8088336 = 9025^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 89538961 - 2⁵ = 89538929 is a prime.

It is not a weakly prime, because it can be changed into another prime (89538941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44769480 + 44769481.

It is an arithmetic number, because the mean of its divisors is an integer number (44769481).

Almost surely, 2^89538961 is an apocalyptic number.

It is an amenable number.

89538961 is a deficient number, since it is larger than the sum of its proper divisors (1).

89538961 is an equidigital number, since it uses as much as digits as its factorization.

89538961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 49.

The square root of 89538961 is about 9462.5028929982. The cubic root of 89538961 is about 447.3739411688.

The spelling of 89538961 in words is "eighty-nine million, five hundred thirty-eight thousand, nine hundred sixty-one".