389952515 has 8 divisors (see below), whose sum is σ = 470746080. Its totient is φ = 310093312.

The previous prime is 389952457. The next prime is 389952527. The reversal of 389952515 is 515259983.

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 389952515 - 2¹⁶ = 389886979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389952515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232670 + ... + 234339.

It is an arithmetic number, because the mean of its divisors is an integer number (58843260).

Almost surely, 2^389952515 is an apocalyptic number.

389952515 is a deficient number, since it is larger than the sum of its proper divisors (80793565).

389952515 is a wasteful number, since it uses less digits than its factorization.

389952515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467181.

The product of its digits is 486000, while the sum is 47.

The square root of 389952515 is about 19747.2153733128. The cubic root of 389952515 is about 730.5847038756.

The spelling of 389952515 in words is "three hundred eighty-nine million, nine hundred fifty-two thousand, five hundred fifteen".