839712012 has 12 divisors (see below), whose sum is σ = 1959328056. Its totient is φ = 279904000.

The previous prime is 839711989. The next prime is 839712017. The reversal of 839712012 is 210217938.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (839712017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34987989 + ... + 34988012.

It is an arithmetic number, because the mean of its divisors is an integer number (163277338).

Almost surely, 2^839712012 is an apocalyptic number.

It is an amenable number.

839712012 is an abundant number, since it is smaller than the sum of its proper divisors (1119616044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

839712012 is a wasteful number, since it uses less digits than its factorization.

839712012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69976008 (or 69976006 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 839712012 is about 28977.7848014647. The cubic root of 839712012 is about 943.4309552260.

The spelling of 839712012 in words is "eight hundred thirty-nine million, seven hundred twelve thousand, twelve".