394799099 has 4 divisors (see below), whose sum is σ = 396204360. Its totient is φ = 393393840.

The previous prime is 394799089. The next prime is 394799113. The reversal of 394799099 is 990997493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394799099 - 2²⁴ = 378021883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394799029) 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 3 ways as a sum of consecutive naturals, for example, 702209 + ... + 702770.

It is an arithmetic number, because the mean of its divisors is an integer number (99051090).

Almost surely, 2^394799099 is an apocalyptic number.

394799099 is a deficient number, since it is larger than the sum of its proper divisors (1405261).

394799099 is a wasteful number, since it uses less digits than its factorization.

394799099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405260.

The product of its (nonzero) digits is 4960116, while the sum is 59.

The square root of 394799099 is about 19869.5520583631. The cubic root of 394799099 is about 733.5989779800.

Subtracting from 394799099 its product of nonzero digits (4960116), we obtain a palindrome (389838983).

The spelling of 394799099 in words is "three hundred ninety-four million, seven hundred ninety-nine thousand, ninety-nine".