99778294 has 24 divisors (see below), whose sum is σ = 188015184. Its totient is φ = 38874000.

The previous prime is 99778271. The next prime is 99778309. The reversal of 99778294 is 49287799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27757 + ... + 31144.

It is an arithmetic number, because the mean of its divisors is an integer number (7833966).

Almost surely, 2^99778294 is an apocalyptic number.

99778294 is a deficient number, since it is larger than the sum of its proper divisors (88236890).

99778294 is a wasteful number, since it uses less digits than its factorization.

99778294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58932 (or 58921 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 55.

The square root of 99778294 is about 9988.9085489857. The cubic root of 99778294 is about 463.8156068500.

The spelling of 99778294 in words is "ninety-nine million, seven hundred seventy-eight thousand, two hundred ninety-four".