389028479 has 8 divisors (see below), whose sum is σ = 444791808. Its totient is φ = 333312120.

The previous prime is 389028379. The next prime is 389028481. The reversal of 389028479 is 974820983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389028479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389028499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8294 + ... + 29100.

It is an arithmetic number, because the mean of its divisors is an integer number (55598976).

Almost surely, 2^389028479 is an apocalyptic number.

389028479 is a deficient number, since it is larger than the sum of its proper divisors (55763329).

389028479 is a wasteful number, since it uses less digits than its factorization.

389028479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23485.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 389028479 is about 19723.8048814117. The cubic root of 389028479 is about 730.0071801383.

The spelling of 389028479 in words is "three hundred eighty-nine million, twenty-eight thousand, four hundred seventy-nine".