89741969 has 2 divisors, whose sum is σ = 89741970. Its totient is φ = 89741968.

The previous prime is 89741947. The next prime is 89742013. The reversal of 89741969 is 96914798.

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., 89548369 + 193600 = 9463^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 89741969 - 2¹² = 89737873 is a prime.

It is a super-2 number, since 2×89741969² = 16107241999993922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89741969.

It is not a weakly prime, because it can be changed into another prime (89741569) 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, 44870984 + 44870985.

It is an arithmetic number, because the mean of its divisors is an integer number (44870985).

Almost surely, 2^89741969 is an apocalyptic number.

It is an amenable number.

89741969 is a deficient number, since it is larger than the sum of its proper divisors (1).

89741969 is an equidigital number, since it uses as much as digits as its factorization.

89741969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The square root of 89741969 is about 9473.2237912972. The cubic root of 89741969 is about 447.7117901398.

The spelling of 89741969 in words is "eighty-nine million, seven hundred forty-one thousand, nine hundred sixty-nine".