89696569 has 2 divisors, whose sum is σ = 89696570. Its totient is φ = 89696568.

The previous prime is 89696543. The next prime is 89696599. The reversal of 89696569 is 96569698.

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., 76650025 + 13046544 = 8755^2 + 3612^2 .

It is a cyclic number.

It is not a de Polignac number, because 89696569 - 2⁷ = 89696441 is a prime.

It is a super-2 number, since 2×89696569² = 16090948980743522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89696599) 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, 44848284 + 44848285.

It is an arithmetic number, because the mean of its divisors is an integer number (44848285).

Almost surely, 2^89696569 is an apocalyptic number.

It is an amenable number.

89696569 is a deficient number, since it is larger than the sum of its proper divisors (1).

89696569 is an equidigital number, since it uses as much as digits as its factorization.

89696569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 58.

The square root of 89696569 is about 9470.8272605934. The cubic root of 89696569 is about 447.6362790418.

The spelling of 89696569 in words is "eighty-nine million, six hundred ninety-six thousand, five hundred sixty-nine".