389698937 has 2 divisors, whose sum is σ = 389698938. Its totient is φ = 389698936.

The previous prime is 389698909. The next prime is 389698943. The reversal of 389698937 is 739896983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360582121 + 29116816 = 18989^2 + 5396^2 .

It is a cyclic number.

It is not a de Polignac number, because 389698937 - 2⁸ = 389698681 is a prime.

It is a super-2 number, since 2×389698937² = 303730522997859938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389698937.

It is not a weakly prime, because it can be changed into another prime (389698997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194849468 + 194849469.

It is an arithmetic number, because the mean of its divisors is an integer number (194849469).

Almost surely, 2^389698937 is an apocalyptic number.

It is an amenable number.

389698937 is a deficient number, since it is larger than the sum of its proper divisors (1).

389698937 is an equidigital number, since it uses as much as digits as its factorization.

389698937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 62.

The square root of 389698937 is about 19740.7937277101. The cubic root of 389698937 is about 730.4263081972.

The spelling of 389698937 in words is "three hundred eighty-nine million, six hundred ninety-eight thousand, nine hundred thirty-seven".