89896669 has 2 divisors, whose sum is σ = 89896670. Its totient is φ = 89896668.

The previous prime is 89896637. The next prime is 89896679. The reversal of 89896669 is 96669898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60248644 + 29648025 = 7762^2 + 5445^2 .

It is a cyclic number.

It is not a de Polignac number, because 89896669 - 2⁵ = 89896637 is a prime.

It is a super-2 number, since 2×89896669² = 16162822194591122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89896679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44948334 + 44948335.

It is an arithmetic number, because the mean of its divisors is an integer number (44948335).

Almost surely, 2^89896669 is an apocalyptic number.

It is an amenable number.

89896669 is a deficient number, since it is larger than the sum of its proper divisors (1).

89896669 is an equidigital number, since it uses as much as digits as its factorization.

89896669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 61.

The square root of 89896669 is about 9481.3853945507. The cubic root of 89896669 is about 447.9689022977.

The spelling of 89896669 in words is "eighty-nine million, eight hundred ninety-six thousand, six hundred sixty-nine".