89610641 has 2 divisors, whose sum is σ = 89610642. Its totient is φ = 89610640.

The previous prime is 89610617. The next prime is 89610679. The reversal of 89610641 is 14601698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82428241 + 7182400 = 9079^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 89610641 - 2²⁶ = 22501777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89610601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44805320 + 44805321.

It is an arithmetic number, because the mean of its divisors is an integer number (44805321).

Almost surely, 2^89610641 is an apocalyptic number.

It is an amenable number.

89610641 is a deficient number, since it is larger than the sum of its proper divisors (1).

89610641 is an equidigital number, since it uses as much as digits as its factorization.

89610641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 89610641 is about 9466.2897166736. The cubic root of 89610641 is about 447.4932903710.

The spelling of 89610641 in words is "eighty-nine million, six hundred ten thousand, six hundred forty-one".