389479967 has 2 divisors, whose sum is σ = 389479968. Its totient is φ = 389479966.

The previous prime is 389479949. The next prime is 389479969. The reversal of 389479967 is 769974983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389479967 - 2¹² = 389475871 is a prime.

Together with 389479969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389479969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194739983 + 194739984.

It is an arithmetic number, because the mean of its divisors is an integer number (194739984).

Almost surely, 2^389479967 is an apocalyptic number.

389479967 is a deficient number, since it is larger than the sum of its proper divisors (1).

389479967 is an equidigital number, since it uses as much as digits as its factorization.

389479967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 62.

The square root of 389479967 is about 19735.2468188265. The cubic root of 389479967 is about 730.2894748628.

The spelling of 389479967 in words is "three hundred eighty-nine million, four hundred seventy-nine thousand, nine hundred sixty-seven".