389507 has 2 divisors, whose sum is σ = 389508. Its totient is φ = 389506.

The previous prime is 389483. The next prime is 389513. The reversal of 389507 is 705983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389507 - 2¹⁰ = 388483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389527) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194753 + 194754.

It is an arithmetic number, because the mean of its divisors is an integer number (194754).

2³⁸⁹⁵⁰⁷ is an apocalyptic number.

389507 is a deficient number, since it is larger than the sum of its proper divisors (1).

389507 is an equidigital number, since it uses as much as digits as its factorization.

389507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 389507 is about 624.1049591215. The cubic root of 389507 is about 73.0306370433.

The spelling of 389507 in words is "three hundred eighty-nine thousand, five hundred seven".