89686769 has 2 divisors, whose sum is σ = 89686770. Its totient is φ = 89686768.

The previous prime is 89686757. The next prime is 89686801. The reversal of 89686769 is 96768698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 44622400 = 6713^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 89686769 - 2¹² = 89682673 is a prime.

It is a super-2 number, since 2×89686769² = 16087433067318722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89686739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44843384 + 44843385.

It is an arithmetic number, because the mean of its divisors is an integer number (44843385).

Almost surely, 2^89686769 is an apocalyptic number.

It is an amenable number.

89686769 is a deficient number, since it is larger than the sum of its proper divisors (1).

89686769 is an equidigital number, since it uses as much as digits as its factorization.

89686769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The square root of 89686769 is about 9470.3098682145. The cubic root of 89686769 is about 447.6199759459.

The spelling of 89686769 in words is "eighty-nine million, six hundred eighty-six thousand, seven hundred sixty-nine".