389336579 has 4 divisors (see below), whose sum is σ = 397620384. Its totient is φ = 381052776.

The previous prime is 389336573. The next prime is 389336599. The reversal of 389336579 is 975633983.

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 389336579 - 2¹² = 389332483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389336579.

It is not an unprimeable number, because it can be changed into a prime (389336573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4141832 + ... + 4141925.

It is an arithmetic number, because the mean of its divisors is an integer number (99405096).

Almost surely, 2^389336579 is an apocalyptic number.

389336579 is a deficient number, since it is larger than the sum of its proper divisors (8283805).

389336579 is an equidigital number, since it uses as much as digits as its factorization.

389336579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283804.

The product of its digits is 3674160, while the sum is 53.

The square root of 389336579 is about 19731.6136947792. The cubic root of 389336579 is about 730.1998445788.

The spelling of 389336579 in words is "three hundred eighty-nine million, three hundred thirty-six thousand, five hundred seventy-nine".