389432799 has 32 divisors (see below), whose sum is σ = 668666880. Its totient is φ = 219391200.

The previous prime is 389432773. The next prime is 389432809. The reversal of 389432799 is 997234983.

It is not a de Polignac number, because 389432799 - 2⁵ = 389432767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389432749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (20895840).

Almost surely, 2^389432799 is an apocalyptic number.

389432799 is a deficient number, since it is larger than the sum of its proper divisors (279234081).

389432799 is a wasteful number, since it uses less digits than its factorization.

389432799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29108 (or 29102 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 389432799 is about 19734.0517633860. The cubic root of 389432799 is about 730.2599930858.

The spelling of 389432799 in words is "three hundred eighty-nine million, four hundred thirty-two thousand, seven hundred ninety-nine".