389083489 has 2 divisors, whose sum is σ = 389083490. Its totient is φ = 389083488.

The previous prime is 389083469. The next prime is 389083507. The reversal of 389083489 is 984380983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376360000 + 12723489 = 19400^2 + 3567^2 .

It is a cyclic number.

It is not a de Polignac number, because 389083489 - 2⁹ = 389082977 is a prime.

It is a super-2 number, since 2×389083489² = 302771922824826242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (389083469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194541744 + 194541745.

It is an arithmetic number, because the mean of its divisors is an integer number (194541745).

Almost surely, 2^389083489 is an apocalyptic number.

It is an amenable number.

389083489 is a deficient number, since it is larger than the sum of its proper divisors (1).

389083489 is an equidigital number, since it uses as much as digits as its factorization.

389083489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 389083489 is about 19725.1993399306. The cubic root of 389083489 is about 730.0415870472.

The spelling of 389083489 in words is "three hundred eighty-nine million, eighty-three thousand, four hundred eighty-nine".