389231699 has 4 divisors (see below), whose sum is σ = 389430360. Its totient is φ = 389033040.

The previous prime is 389231683. The next prime is 389231729. The reversal of 389231699 is 996132983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389231699 - 2⁴ = 389231683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389231639) 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, 96362 + ... + 100319.

It is an arithmetic number, because the mean of its divisors is an integer number (97357590).

Almost surely, 2^389231699 is an apocalyptic number.

389231699 is a deficient number, since it is larger than the sum of its proper divisors (198661).

389231699 is a wasteful number, since it uses less digits than its factorization.

389231699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198660.

The product of its digits is 629856, while the sum is 50.

The square root of 389231699 is about 19728.9558517424. The cubic root of 389231699 is about 730.1342712920.

The spelling of 389231699 in words is "three hundred eighty-nine million, two hundred thirty-one thousand, six hundred ninety-nine".