857087612 has 12 divisors (see below), whose sum is σ = 1501124520. Its totient is φ = 428194896.

The previous prime is 857087611. The next prime is 857087641. The reversal of 857087612 is 216780758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857087611) 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, 81662 + ... + 91557.

It is an arithmetic number, because the mean of its divisors is an integer number (125093710).

Almost surely, 2^857087612 is an apocalyptic number.

It is an amenable number.

857087612 is a deficient number, since it is larger than the sum of its proper divisors (644036908).

857087612 is a wasteful number, since it uses less digits than its factorization.

857087612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174460 (or 174458 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 857087612 is about 29276.0586828214. The cubic root of 857087612 is about 949.8938429857.

The spelling of 857087612 in words is "eight hundred fifty-seven million, eighty-seven thousand, six hundred twelve".