99790969 has 4 divisors (see below), whose sum is σ = 105661044. Its totient is φ = 93920896.

The previous prime is 99790967. The next prime is 99790987. The reversal of 99790969 is 96909799.

It is a happy number.

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 91011600 + 8779369 = 9540^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 99790969 - 2¹ = 99790967 is a prime.

It is a super-2 number, since 2×99790969² = 19916474987917922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99790967) 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, 2935012 + ... + 2935045.

It is an arithmetic number, because the mean of its divisors is an integer number (26415261).

Almost surely, 2^99790969 is an apocalyptic number.

It is an amenable number.

99790969 is a deficient number, since it is larger than the sum of its proper divisors (5870075).

99790969 is a wasteful number, since it uses less digits than its factorization.

99790969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870074.

The product of its (nonzero) digits is 2480058, while the sum is 58.

The square root of 99790969 is about 9989.5429825393. The cubic root of 99790969 is about 463.8352457703.

The spelling of 99790969 in words is "ninety-nine million, seven hundred ninety thousand, nine hundred sixty-nine".