99988969 has 4 divisors (see below), whose sum is σ = 100084096. Its totient is φ = 99893844.

The previous prime is 99988961. The next prime is 99988997. The reversal of 99988969 is 96988999.

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 99988969 - 2³ = 99988961 is a prime.

It is a super-2 number, since 2×99988969² = 19995587843365922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99988961) 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, 45969 + ... + 48094.

It is an arithmetic number, because the mean of its divisors is an integer number (25021024).

Almost surely, 2^99988969 is an apocalyptic number.

It is an amenable number.

99988969 is a deficient number, since it is larger than the sum of its proper divisors (95127).

99988969 is a wasteful number, since it uses less digits than its factorization.

99988969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95126.

The product of its digits is 22674816, while the sum is 67.

The square root of 99988969 is about 9999.4484347888. The cubic root of 99988969 is about 464.1418156115.

The spelling of 99988969 in words is "ninety-nine million, nine hundred eighty-eight thousand, nine hundred sixty-nine".