89809970 has 8 divisors (see below), whose sum is σ = 161657964. Its totient is φ = 35923984.

The previous prime is 89809969. The next prime is 89809987. The reversal of 89809970 is 7990898.

It can be written as a sum of positive squares in 2 ways, for example, as 88755241 + 1054729 = 9421^2 + 1027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×89809970² = 16131661422801800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4490489 + ... + 4490508.

Almost surely, 2^89809970 is an apocalyptic number.

89809970 is a deficient number, since it is larger than the sum of its proper divisors (71847994).

89809970 is a wasteful number, since it uses less digits than its factorization.

89809970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981004.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 89809970 is about 9476.8122277483. The cubic root of 89809970 is about 447.8248445010.

The spelling of 89809970 in words is "eighty-nine million, eight hundred nine thousand, nine hundred seventy".