857280794 has 16 divisors (see below), whose sum is σ = 1420763328. Its totient is φ = 385885632.

The previous prime is 857280793. The next prime is 857280821. The reversal of 857280794 is 497082758.

It is a super-2 number, since 2×857280794² = 1469860719522540872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (857280791) 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, 547352 + ... + 548915.

It is an arithmetic number, because the mean of its divisors is an integer number (88797708).

Almost surely, 2^857280794 is an apocalyptic number.

857280794 is a deficient number, since it is larger than the sum of its proper divisors (563482534).

857280794 is a wasteful number, since it uses less digits than its factorization.

857280794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096309.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The square root of 857280794 is about 29279.3578139959. The cubic root of 857280794 is about 949.9652042657.

The spelling of 857280794 in words is "eight hundred fifty-seven million, two hundred eighty thousand, seven hundred ninety-four".