855439124 has 12 divisors (see below), whose sum is σ = 1502984448. Its totient is φ = 426015000.

The previous prime is 855439121. The next prime is 855439139. The reversal of 855439124 is 421934558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855439121) 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, 425012 + ... + 427019.

It is an arithmetic number, because the mean of its divisors is an integer number (125248704).

Almost surely, 2^855439124 is an apocalyptic number.

It is an amenable number.

855439124 is a deficient number, since it is larger than the sum of its proper divisors (647545324).

855439124 is a wasteful number, since it uses less digits than its factorization.

855439124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852286 (or 852284 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 855439124 is about 29247.8909325100. The cubic root of 855439124 is about 949.2844561987.

The spelling of 855439124 in words is "eight hundred fifty-five million, four hundred thirty-nine thousand, one hundred twenty-four".