99769439 has 32 divisors (see below), whose sum is σ = 131174400. Its totient is φ = 75146400.

The previous prime is 99769433. The next prime is 99769459. The reversal of 99769439 is 93496799.

It is not a de Polignac number, because 99769439 - 2⁸ = 99769183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99769433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116537 + ... + 117389.

It is an arithmetic number, because the mean of its divisors is an integer number (4099200).

Almost surely, 2^99769439 is an apocalyptic number.

99769439 is a deficient number, since it is larger than the sum of its proper divisors (31404961).

99769439 is a wasteful number, since it uses less digits than its factorization.

99769439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 902 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 56.

The square root of 99769439 is about 9988.4652975319. The cubic root of 99769439 is about 463.8018857338.

The spelling of 99769439 in words is "ninety-nine million, seven hundred sixty-nine thousand, four hundred thirty-nine".