389025907 has 2 divisors, whose sum is σ = 389025908. Its totient is φ = 389025906.

The previous prime is 389025899. The next prime is 389025929. The reversal of 389025907 is 709520983.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389025907 - 2³ = 389025899 is a prime.

It is not a weakly prime, because it can be changed into another prime (389025407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194512953 + 194512954.

It is an arithmetic number, because the mean of its divisors is an integer number (194512954).

Almost surely, 2^389025907 is an apocalyptic number.

389025907 is a deficient number, since it is larger than the sum of its proper divisors (1).

389025907 is an equidigital number, since it uses as much as digits as its factorization.

389025907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 389025907 is about 19723.7396809023. The cubic root of 389025907 is about 730.0055713592.

The spelling of 389025907 in words is "three hundred eighty-nine million, twenty-five thousand, nine hundred seven".