389504363 has 4 divisors (see below), whose sum is σ = 398562648. Its totient is φ = 380446080.

The previous prime is 389504359. The next prime is 389504383. The reversal of 389504363 is 363405983.

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 389504363 - 2² = 389504359 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 389504363.

It is not an unprimeable number, because it can be changed into a prime (389504303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4529078 + ... + 4529163.

It is an arithmetic number, because the mean of its divisors is an integer number (99640662).

Almost surely, 2^389504363 is an apocalyptic number.

389504363 is a deficient number, since it is larger than the sum of its proper divisors (9058285).

389504363 is an equidigital number, since it uses as much as digits as its factorization.

389504363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058284.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 389504363 is about 19735.8648911062. The cubic root of 389504363 is about 730.3047223480.

The spelling of 389504363 in words is "three hundred eighty-nine million, five hundred four thousand, three hundred sixty-three".