389964699 has 14 divisors (see below), whose sum is σ = 584680676. Its totient is φ = 259975980.

The previous prime is 389964691. The next prime is 389964709. The reversal of 389964699 is 996469983.

389964699 is a `hidden beast` number, since 3 + 89 + 96 + 469 + 9 = 666.

It is not a de Polignac number, because 389964699 - 2³ = 389964691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389964691) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 266737 + ... + 268194.

Almost surely, 2^389964699 is an apocalyptic number.

389964699 is a deficient number, since it is larger than the sum of its proper divisors (194715977).

389964699 is an frugal number, since it uses more digits than its factorization.

389964699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534949 (or 534934 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The square root of 389964699 is about 19747.5238700957. The cubic root of 389964699 is about 730.5923127946.

The spelling of 389964699 in words is "three hundred eighty-nine million, nine hundred sixty-four thousand, six hundred ninety-nine".