89479613 has 2 divisors, whose sum is σ = 89479614. Its totient is φ = 89479612.

The previous prime is 89479601. The next prime is 89479627. The reversal of 89479613 is 31697498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64609444 + 24870169 = 8038^2 + 4987^2 .

It is a cyclic number.

It is not a de Polignac number, because 89479613 - 2⁴ = 89479597 is a prime.

It is a super-2 number, since 2×89479613² = 16013202285259538, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89479633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739806 + 44739807.

It is an arithmetic number, because the mean of its divisors is an integer number (44739807).

Almost surely, 2^89479613 is an apocalyptic number.

It is an amenable number.

89479613 is a deficient number, since it is larger than the sum of its proper divisors (1).

89479613 is an equidigital number, since it uses as much as digits as its factorization.

89479613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 89479613 is about 9459.3664164150. The cubic root of 89479613 is about 447.2750768807.

The spelling of 89479613 in words is "eighty-nine million, four hundred seventy-nine thousand, six hundred thirteen".