389723401 has 2 divisors, whose sum is σ = 389723402. Its totient is φ = 389723400.

The previous prime is 389723381. The next prime is 389723417. The reversal of 389723401 is 104327983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252810000 + 136913401 = 15900^2 + 11701^2 .

It is a cyclic number.

It is not a de Polignac number, because 389723401 - 2⁷ = 389723273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389723441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194861700 + 194861701.

It is an arithmetic number, because the mean of its divisors is an integer number (194861701).

Almost surely, 2^389723401 is an apocalyptic number.

It is an amenable number.

389723401 is a deficient number, since it is larger than the sum of its proper divisors (1).

389723401 is an equidigital number, since it uses as much as digits as its factorization.

389723401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 389723401 is about 19741.4133485929. The cubic root of 389723401 is about 730.4415924535.

The spelling of 389723401 in words is "three hundred eighty-nine million, seven hundred twenty-three thousand, four hundred one".