89623769 has 2 divisors, whose sum is σ = 89623770. Its totient is φ = 89623768.

The previous prime is 89623763. The next prime is 89623777. The reversal of 89623769 is 96732698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63409369 + 26214400 = 7963^2 + 5120^2 .

It is a cyclic number.

It is not a de Polignac number, because 89623769 - 2⁴ = 89623753 is a prime.

It is a super-2 number, since 2×89623769² = 16064839939530722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89623763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44811884 + 44811885.

It is an arithmetic number, because the mean of its divisors is an integer number (44811885).

Almost surely, 2^89623769 is an apocalyptic number.

It is an amenable number.

89623769 is a deficient number, since it is larger than the sum of its proper divisors (1).

89623769 is an equidigital number, since it uses as much as digits as its factorization.

89623769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 89623769 is about 9466.9830991716. The cubic root of 89623769 is about 447.5151419613.

The spelling of 89623769 in words is "eighty-nine million, six hundred twenty-three thousand, seven hundred sixty-nine".