855879412 has 12 divisors (see below), whose sum is σ = 1538270020. Its totient is φ = 416373696.

The previous prime is 855879397. The next prime is 855879419. The reversal of 855879412 is 214978558.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 587771536 + 268107876 = 24244^2 + 16374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855879419) 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, 2891337 + ... + 2891632.

Almost surely, 2^855879412 is an apocalyptic number.

It is an amenable number.

855879412 is a deficient number, since it is larger than the sum of its proper divisors (682390608).

855879412 is a wasteful number, since it uses less digits than its factorization.

855879412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783010 (or 5783008 counting only the distinct ones).

The product of its digits is 806400, while the sum is 49.

The square root of 855879412 is about 29255.4167975778. The cubic root of 855879412 is about 949.4472914244.

The spelling of 855879412 in words is "eight hundred fifty-five million, eight hundred seventy-nine thousand, four hundred twelve".