389698913 has 4 divisors (see below), whose sum is σ = 406642368. Its totient is φ = 372755460.

The previous prime is 389698909. The next prime is 389698937. The reversal of 389698913 is 319896983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319896983 = 7 ⋅45699569.

It is a cyclic number.

It is not a de Polignac number, because 389698913 - 2² = 389698909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389698943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8471693 + ... + 8471738.

It is an arithmetic number, because the mean of its divisors is an integer number (101660592).

Almost surely, 2^389698913 is an apocalyptic number.

It is an amenable number.

389698913 is a deficient number, since it is larger than the sum of its proper divisors (16943455).

389698913 is a wasteful number, since it uses less digits than its factorization.

389698913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16943454.

The product of its digits is 2519424, while the sum is 56.

The square root of 389698913 is about 19740.7931198318. The cubic root of 389698913 is about 730.4262932025.

The spelling of 389698913 in words is "three hundred eighty-nine million, six hundred ninety-eight thousand, nine hundred thirteen".