99545969 has 4 divisors (see below), whose sum is σ = 100046400. Its totient is φ = 99045540.

The previous prime is 99545911. The next prime is 99545993. The reversal of 99545969 is 96954599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99545969 - 2²⁴ = 82768753 is a prime.

It is a super-2 number, since 2×99545969² = 19818799888297922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99542969) 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, 249917 + ... + 250314.

It is an arithmetic number, because the mean of its divisors is an integer number (25011600).

Almost surely, 2^99545969 is an apocalyptic number.

It is an amenable number.

99545969 is a deficient number, since it is larger than the sum of its proper divisors (500431).

99545969 is a wasteful number, since it uses less digits than its factorization.

99545969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500430.

The product of its digits is 3936600, while the sum is 56.

The square root of 99545969 is about 9977.2726233175. The cubic root of 99545969 is about 463.4553424467.

It can be divided in two parts, 99545 and 969, that multiplied together give a triangular number (96459105 = T₁₃₈₈₉).

The spelling of 99545969 in words is "ninety-nine million, five hundred forty-five thousand, nine hundred sixty-nine".