389776967 has 4 divisors (see below), whose sum is σ = 389960160. Its totient is φ = 389593776.

The previous prime is 389776939. The next prime is 389776973. The reversal of 389776967 is 769677983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769677983 = 179 ⋅4299877.

It is a cyclic number.

It is not a de Polignac number, because 389776967 - 2¹² = 389772871 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 (389776927) 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, 88367 + ... + 92672.

It is an arithmetic number, because the mean of its divisors is an integer number (97490040).

Almost surely, 2^389776967 is an apocalyptic number.

389776967 is a deficient number, since it is larger than the sum of its proper divisors (183193).

389776967 is a wasteful number, since it uses less digits than its factorization.

389776967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183192.

The product of its digits is 24004512, while the sum is 62.

The square root of 389776967 is about 19742.7699930886. The cubic root of 389776967 is about 730.4750563938.

The spelling of 389776967 in words is "three hundred eighty-nine million, seven hundred seventy-six thousand, nine hundred sixty-seven".