89616577 has 2 divisors, whose sum is σ = 89616578. Its totient is φ = 89616576.

The previous prime is 89616551. The next prime is 89616581. The reversal of 89616577 is 77561698.

89616577 is nontrivially palindromic in base 15.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83740801 + 5875776 = 9151^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 89616577 - 2¹¹ = 89614529 is a prime.

It is a super-2 number, since 2×89616577² = 16062261746393858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89616577.

It is not a weakly prime, because it can be changed into another prime (89616547) 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, 44808288 + 44808289.

It is an arithmetic number, because the mean of its divisors is an integer number (44808289).

Almost surely, 2^89616577 is an apocalyptic number.

It is an amenable number.

89616577 is a deficient number, since it is larger than the sum of its proper divisors (1).

89616577 is an equidigital number, since it uses as much as digits as its factorization.

89616577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The square root of 89616577 is about 9466.6032450927. The cubic root of 89616577 is about 447.5031711228.

The spelling of 89616577 in words is "eighty-nine million, six hundred sixteen thousand, five hundred seventy-seven".