856802798 has 8 divisors (see below), whose sum is σ = 1287981408. Its totient is φ = 427475664.

The previous prime is 856802783. The next prime is 856802867. The reversal of 856802798 is 897208658.

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

It is a super-2 number, since 2×856802798² = 1468222069321257608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461711 + ... + 463562.

It is an arithmetic number, because the mean of its divisors is an integer number (160997676).

Almost surely, 2^856802798 is an apocalyptic number.

856802798 is a deficient number, since it is larger than the sum of its proper divisors (431178610).

856802798 is a wasteful number, since it uses less digits than its factorization.

856802798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925738.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 856802798 is about 29271.1939968290. The cubic root of 856802798 is about 949.7886133552.

The spelling of 856802798 in words is "eight hundred fifty-six million, eight hundred two thousand, seven hundred ninety-eight".