89479469 has 2 divisors, whose sum is σ = 89479470. Its totient is φ = 89479468.

The previous prime is 89479457. The next prime is 89479477. The reversal of 89479469 is 96497498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89056969 + 422500 = 9437^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 89479469 - 2⁸ = 89479213 is a prime.

It is a super-2 number, since 2×89479469² = 16013150745043922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89479069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739734 + 44739735.

It is an arithmetic number, because the mean of its divisors is an integer number (44739735).

Almost surely, 2^89479469 is an apocalyptic number.

It is an amenable number.

89479469 is a deficient number, since it is larger than the sum of its proper divisors (1).

89479469 is an equidigital number, since it uses as much as digits as its factorization.

89479469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 56.

The square root of 89479469 is about 9459.3588049085. The cubic root of 89479469 is about 447.2748369465.

The spelling of 89479469 in words is "eighty-nine million, four hundred seventy-nine thousand, four hundred sixty-nine".