389564417 has 8 divisors (see below), whose sum is σ = 425179200. Its totient is φ = 353982960.

The previous prime is 389564393. The next prime is 389564431. The reversal of 389564417 is 714465983.

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

It is a cyclic number.

It is not a de Polignac number, because 389564417 - 2¹⁶ = 389498881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389564017) 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, 20459 + ... + 34607.

It is an arithmetic number, because the mean of its divisors is an integer number (53147400).

Almost surely, 2^389564417 is an apocalyptic number.

It is an amenable number.

389564417 is a deficient number, since it is larger than the sum of its proper divisors (35614783).

389564417 is a wasteful number, since it uses less digits than its factorization.

389564417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16663.

The product of its digits is 725760, while the sum is 47.

The square root of 389564417 is about 19737.3862757965. The cubic root of 389564417 is about 730.3422533490.

The spelling of 389564417 in words is "three hundred eighty-nine million, five hundred sixty-four thousand, four hundred seventeen".