99190969 has 4 divisors (see below), whose sum is σ = 101871844. Its totient is φ = 96510096.

The previous prime is 99190961. The next prime is 99190997. The reversal of 99190969 is 96909199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96909199 = 41 ⋅2363639.

It can be written as a sum of positive squares in 2 ways, for example, as 58064400 + 41126569 = 7620^2 + 6413^2 .

It is a cyclic number.

It is not a de Polignac number, because 99190969 - 2³ = 99190961 is a prime.

It is a super-2 number, since 2×99190969² = 19677696662317922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99190961) 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, 1340382 + ... + 1340455.

It is an arithmetic number, because the mean of its divisors is an integer number (25467961).

Almost surely, 2^99190969 is an apocalyptic number.

It is an amenable number.

99190969 is a deficient number, since it is larger than the sum of its proper divisors (2680875).

99190969 is a wasteful number, since it uses less digits than its factorization.

99190969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680874.

The product of its (nonzero) digits is 354294, while the sum is 52.

The square root of 99190969 is about 9959.4663009621. The cubic root of 99190969 is about 462.9037627277.

The spelling of 99190969 in words is "ninety-nine million, one hundred ninety thousand, nine hundred sixty-nine".