1683674856 has 64 divisors (see below), whose sum is σ = 4680259200. Its totient is φ = 560818944.

The previous prime is 1683674831. The next prime is 1683674869. The reversal of 1683674856 is 6584763861.

It is a super-2 number, since 2×1683674856² = 5669522041453241472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521760 + ... + 524976.

It is an arithmetic number, because the mean of its divisors is an integer number (73129050).

Almost surely, 2^1683674856 is an apocalyptic number.

It is an amenable number.

1683674856 is an abundant number, since it is smaller than the sum of its proper divisors (2996584344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1683674856 is a wasteful number, since it uses less digits than its factorization.

1683674856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655 (or 5645 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 1683674856 is about 41032.6072288857. The cubic root of 1683674856 is about 1189.6505472976.

It can be divided in two parts, 1683674 and 856, that added together give a triangular number (1684530 = T₁₈₃₅).

The spelling of 1683674856 in words is "one billion, six hundred eighty-three million, six hundred seventy-four thousand, eight hundred fifty-six".