389056399 has 2 divisors, whose sum is σ = 389056400. Its totient is φ = 389056398.

The previous prime is 389056309. The next prime is 389056403. The reversal of 389056399 is 993650983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389056399 - 2¹³ = 389048207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389056309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194528199 + 194528200.

It is an arithmetic number, because the mean of its divisors is an integer number (194528200).

Almost surely, 2^389056399 is an apocalyptic number.

389056399 is a deficient number, since it is larger than the sum of its proper divisors (1).

389056399 is an equidigital number, since it uses as much as digits as its factorization.

389056399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 389056399 is about 19724.5126429020. The cubic root of 389056399 is about 730.0246435666.

The spelling of 389056399 in words is "three hundred eighty-nine million, fifty-six thousand, three hundred ninety-nine".