839249133 has 32 divisors (see below), whose sum is σ = 1214054400. Its totient is φ = 513884736.

The previous prime is 839249129. The next prime is 839249219. The reversal of 839249133 is 331942938.

It is not a de Polignac number, because 839249133 - 2² = 839249129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839249233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807228 + ... + 808266.

It is an arithmetic number, because the mean of its divisors is an integer number (37939200).

Almost surely, 2^839249133 is an apocalyptic number.

It is an amenable number.

839249133 is a deficient number, since it is larger than the sum of its proper divisors (374805267).

839249133 is a wasteful number, since it uses less digits than its factorization.

839249133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its digits is 139968, while the sum is 42.

The square root of 839249133 is about 28969.7969098853. The cubic root of 839249133 is about 943.2575725123.

The spelling of 839249133 in words is "eight hundred thirty-nine million, two hundred forty-nine thousand, one hundred thirty-three".