3798687856 has 20 divisors (see below), whose sum is σ = 7417914112. Its totient is φ = 1884387456.

The previous prime is 3798687853. The next prime is 3798687881. The reversal of 3798687856 is 6587868973.

It is a junction number, because it is equal to n+sod(n) for n = 3798687791 and 3798687800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3798687853) 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, 932685 + ... + 936748.

Almost surely, 2^3798687856 is an apocalyptic number.

It is an amenable number.

3798687856 is a deficient number, since it is larger than the sum of its proper divisors (3619226256).

3798687856 is a wasteful number, since it uses less digits than its factorization.

3798687856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869568 (or 1869562 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 67.

The square root of 3798687856 is about 61633.4962175601. The cubic root of 3798687856 is about 1560.3111169974.

The spelling of 3798687856 in words is "three billion, seven hundred ninety-eight million, six hundred eighty-seven thousand, eight hundred fifty-six".