839497449 has 24 divisors (see below), whose sum is σ = 1305354720. Its totient is φ = 478505664.

The previous prime is 839497429. The next prime is 839497457. The reversal of 839497449 is 944794938.

839497449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 839497449 - 2⁸ = 839497193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (839497429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53142 + ... + 67104.

It is an arithmetic number, because the mean of its divisors is an integer number (54389780).

Almost surely, 2^839497449 is an apocalyptic number.

It is an amenable number.

839497449 is a deficient number, since it is larger than the sum of its proper divisors (465857271).

839497449 is a wasteful number, since it uses less digits than its factorization.

839497449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14389 (or 14382 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 839497449 is about 28974.0823668326. The cubic root of 839497449 is about 943.3505933016.

The spelling of 839497449 in words is "eight hundred thirty-nine million, four hundred ninety-seven thousand, four hundred forty-nine".