389232973 has 2 divisors, whose sum is σ = 389232974. Its totient is φ = 389232972.

The previous prime is 389232953. The next prime is 389233001. The reversal of 389232973 is 379232983.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225060004 + 164172969 = 15002^2 + 12813^2 .

It is a cyclic number.

It is not a de Polignac number, because 389232973 - 2¹⁷ = 389101901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389232913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194616486 + 194616487.

It is an arithmetic number, because the mean of its divisors is an integer number (194616487).

Almost surely, 2^389232973 is an apocalyptic number.

It is an amenable number.

389232973 is a deficient number, since it is larger than the sum of its proper divisors (1).

389232973 is an equidigital number, since it uses as much as digits as its factorization.

389232973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 389232973 is about 19728.9881392838. The cubic root of 389232973 is about 730.1350678956.

The spelling of 389232973 in words is "three hundred eighty-nine million, two hundred thirty-two thousand, nine hundred seventy-three".