99565969 has 8 divisors (see below), whose sum is σ = 101432000. Its totient is φ = 97707600.

The previous prime is 99565943. The next prime is 99565979. The reversal of 99565969 is 96956599.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99565969 - 2⁵ = 99565937 is a prime.

It is a super-2 number, since 2×99565969² = 19826764365817922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99565979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28804 + ... + 32074.

It is an arithmetic number, because the mean of its divisors is an integer number (12679000).

Almost surely, 2^99565969 is an apocalyptic number.

It is an amenable number.

99565969 is a deficient number, since it is larger than the sum of its proper divisors (1866031).

99565969 is a wasteful number, since it uses less digits than its factorization.

99565969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its digits is 5904900, while the sum is 58.

The square root of 99565969 is about 9978.2748508948. The cubic root of 99565969 is about 463.4863783130.

The spelling of 99565969 in words is "ninety-nine million, five hundred sixty-five thousand, nine hundred sixty-nine".