839513625 has 16 divisors (see below), whose sum is σ = 1396951296. Its totient is φ = 447740400.

The previous prime is 839513603. The next prime is 839513627. The reversal of 839513625 is 526315938.

It is not a de Polignac number, because 839513625 - 2¹⁷ = 839382553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (839513627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118977 + ... + 1119726.

It is an arithmetic number, because the mean of its divisors is an integer number (87309456).

Almost surely, 2^839513625 is an apocalyptic number.

It is an amenable number.

839513625 is a deficient number, since it is larger than the sum of its proper divisors (557437671).

839513625 is a wasteful number, since it uses less digits than its factorization.

839513625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238721 (or 2238711 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 839513625 is about 28974.3615115157. The cubic root of 839513625 is about 943.3566523000.

The spelling of 839513625 in words is "eight hundred thirty-nine million, five hundred thirteen thousand, six hundred twenty-five".