389610925 has 54 divisors (see below), whose sum is σ = 554782634. Its totient is φ = 271022400.

The previous prime is 389610919. The next prime is 389610929. The reversal of 389610925 is 529016983.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 82555396 + 307055529 = 9086^2 + 17523^2 .

It is not a de Polignac number, because 389610925 - 2¹⁵ = 389578157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389610929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 6603546 + ... + 6603604.

Almost surely, 2^389610925 is an apocalyptic number.

It is an amenable number.

389610925 is a deficient number, since it is larger than the sum of its proper divisors (165171709).

389610925 is a wasteful number, since it uses less digits than its factorization.

389610925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 389610925 is about 19738.5644108177. The cubic root of 389610925 is about 730.3713160700.

The spelling of 389610925 in words is "three hundred eighty-nine million, six hundred ten thousand, nine hundred twenty-five".