99618394 has 8 divisors (see below), whose sum is σ = 149656320. Its totient is φ = 49732956.

The previous prime is 99618383. The next prime is 99618403. The reversal of 99618394 is 49381699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36474 + ... + 39109.

It is an arithmetic number, because the mean of its divisors is an integer number (18707040).

Almost surely, 2^99618394 is an apocalyptic number.

99618394 is a deficient number, since it is larger than the sum of its proper divisors (50037926).

99618394 is a wasteful number, since it uses less digits than its factorization.

99618394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76244.

The product of its digits is 419904, while the sum is 49.

The square root of 99618394 is about 9980.9014622929. The cubic root of 99618394 is about 463.5677113569.

The spelling of 99618394 in words is "ninety-nine million, six hundred eighteen thousand, three hundred ninety-four".