839472861 has 8 divisors (see below), whose sum is σ = 1119975264. Its totient is φ = 559309520.

The previous prime is 839472859. The next prime is 839472919. The reversal of 839472861 is 168274938.

839472861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 839472861 - 2¹ = 839472859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 839472861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839472811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78930 + ... + 88931.

It is an arithmetic number, because the mean of its divisors is an integer number (139996908).

Almost surely, 2^839472861 is an apocalyptic number.

It is an amenable number.

839472861 is a deficient number, since it is larger than the sum of its proper divisors (280502403).

839472861 is a wasteful number, since it uses less digits than its factorization.

839472861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169531.

The product of its digits is 580608, while the sum is 48.

The square root of 839472861 is about 28973.6580534802. The cubic root of 839472861 is about 943.3413832951.

The spelling of 839472861 in words is "eight hundred thirty-nine million, four hundred seventy-two thousand, eight hundred sixty-one".