389674973 has 2 divisors, whose sum is σ = 389674974. Its totient is φ = 389674972.

The previous prime is 389674951. The next prime is 389674997. The reversal of 389674973 is 379476983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252269689 + 137405284 = 15883^2 + 11722^2 .

It is a cyclic number.

It is not a de Polignac number, because 389674973 - 2¹² = 389670877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389674573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194837486 + 194837487.

It is an arithmetic number, because the mean of its divisors is an integer number (194837487).

Almost surely, 2^389674973 is an apocalyptic number.

It is an amenable number.

389674973 is a deficient number, since it is larger than the sum of its proper divisors (1).

389674973 is an equidigital number, since it uses as much as digits as its factorization.

389674973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The square root of 389674973 is about 19740.1867519028. The cubic root of 389674973 is about 730.4113357033.

The spelling of 389674973 in words is "three hundred eighty-nine million, six hundred seventy-four thousand, nine hundred seventy-three".