389502047 has 16 divisors (see below), whose sum is σ = 430012800. Its totient is φ = 349868640.

The previous prime is 389502037. The next prime is 389502059. The reversal of 389502047 is 740205983.

It is not a de Polignac number, because 389502047 - 2²² = 385307743 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 389502047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389502007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410828 + ... + 411774.

It is an arithmetic number, because the mean of its divisors is an integer number (26875800).

Almost surely, 2^389502047 is an apocalyptic number.

389502047 is a deficient number, since it is larger than the sum of its proper divisors (40510753).

389502047 is a wasteful number, since it uses less digits than its factorization.

389502047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 389502047 is about 19735.8062161139. The cubic root of 389502047 is about 730.3032748767.

The spelling of 389502047 in words is "three hundred eighty-nine million, five hundred two thousand, forty-seven".