99995969 has 4 divisors (see below), whose sum is σ = 100633044. Its totient is φ = 99358896.

The previous prime is 99995957. The next prime is 99995983. The reversal of 99995969 is 96959999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65044225 + 34951744 = 8065^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 99995969 - 2²⁴ = 83218753 is a prime.

It is a super-2 number, since 2×99995969² = 19998387632497922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99995939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318302 + ... + 318615.

It is an arithmetic number, because the mean of its divisors is an integer number (25158261).

Almost surely, 2^99995969 is an apocalyptic number.

It is an amenable number.

99995969 is a deficient number, since it is larger than the sum of its proper divisors (637075).

99995969 is a wasteful number, since it uses less digits than its factorization.

99995969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637074.

The product of its digits is 15943230, while the sum is 65.

The square root of 99995969 is about 9999.7984479688. The cubic root of 99995969 is about 464.1526465293.

The spelling of 99995969 in words is "ninety-nine million, nine hundred ninety-five thousand, nine hundred sixty-nine".