1684768056 has 16 divisors (see below), whose sum is σ = 4211920200. Its totient is φ = 561589344.

The previous prime is 1684768039. The next prime is 1684768073. The reversal of 1684768056 is 6508674861.

It is an interprime number because it is at equal distance from previous prime (1684768039) and next prime (1684768073).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 35099311 + ... + 35099358.

Almost surely, 2^1684768056 is an apocalyptic number.

It is an amenable number.

1684768056 is an abundant number, since it is smaller than the sum of its proper divisors (2527152144).

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

1684768056 is a wasteful number, since it uses less digits than its factorization.

1684768056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70198678 (or 70198674 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 1684768056 is about 41045.9261803166. The cubic root of 1684768056 is about 1189.9079692498.

The spelling of 1684768056 in words is "one billion, six hundred eighty-four million, seven hundred sixty-eight thousand, fifty-six".