389862937 has 2 divisors, whose sum is σ = 389862938. Its totient is φ = 389862936.

The previous prime is 389862899. The next prime is 389862961. The reversal of 389862937 is 739268983.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384591321 + 5271616 = 19611^2 + 2296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389862937 is a prime.

It is not a weakly prime, because it can be changed into another prime (389862437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194931468 + 194931469.

It is an arithmetic number, because the mean of its divisors is an integer number (194931469).

Almost surely, 2^389862937 is an apocalyptic number.

It is an amenable number.

389862937 is a deficient number, since it is larger than the sum of its proper divisors (1).

389862937 is an equidigital number, since it uses as much as digits as its factorization.

389862937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 55.

The square root of 389862937 is about 19744.9471257839. The cubic root of 389862937 is about 730.5287574668.

The spelling of 389862937 in words is "three hundred eighty-nine million, eight hundred sixty-two thousand, nine hundred thirty-seven".