389674997 has 2 divisors, whose sum is σ = 389674998. Its totient is φ = 389674996.

The previous prime is 389674973. The next prime is 389675017. The reversal of 389674997 is 799476983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206180881 + 183494116 = 14359^2 + 13546^2 .

It is a cyclic number.

It is not a de Polignac number, because 389674997 - 2⁸ = 389674741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389674907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194837498 + 194837499.

It is an arithmetic number, because the mean of its divisors is an integer number (194837499).

Almost surely, 2^389674997 is an apocalyptic number.

It is an amenable number.

389674997 is a deficient number, since it is larger than the sum of its proper divisors (1).

389674997 is an equidigital number, since it uses as much as digits as its factorization.

389674997 is an odious number, because the sum of its binary digits is odd.

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

The square root of 389674997 is about 19740.1873597998. The cubic root of 389674997 is about 730.4113506986.

The spelling of 389674997 in words is "three hundred eighty-nine million, six hundred seventy-four thousand, nine hundred ninety-seven".