389952517 has 8 divisors (see below), whose sum is σ = 402115392. Its totient is φ = 377916000.

The previous prime is 389952457. The next prime is 389952527. The reversal of 389952517 is 715259983.

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-389952517 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 (389952527) 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, 25303 + ... + 37684.

It is an arithmetic number, because the mean of its divisors is an integer number (50264424).

Almost surely, 2^389952517 is an apocalyptic number.

It is an amenable number.

389952517 is a deficient number, since it is larger than the sum of its proper divisors (12162875).

389952517 is a wasteful number, since it uses less digits than its factorization.

389952517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63179.

The product of its digits is 680400, while the sum is 49.

The square root of 389952517 is about 19747.2154239528. The cubic root of 389952517 is about 730.5847051246.

The spelling of 389952517 in words is "three hundred eighty-nine million, nine hundred fifty-two thousand, five hundred seventeen".