3689717894 has 4 divisors (see below), whose sum is σ = 5534576844. Its totient is φ = 1844858946.

The previous prime is 3689717849. The next prime is 3689717909. The reversal of 3689717894 is 4987179863.

3689717894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4987179863 = 8573 ⋅581731.

It is a super-2 number, since 2×3689717894² = 27228036274607590472, 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 as a sum of consecutive naturals, namely, 922429472 + ... + 922429475.

It is an arithmetic number, because the mean of its divisors is an integer number (1383644211).

Almost surely, 2^3689717894 is an apocalyptic number.

3689717894 is a deficient number, since it is larger than the sum of its proper divisors (1844858950).

3689717894 is a wasteful number, since it uses less digits than its factorization.

3689717894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844858949.

The product of its digits is 18289152, while the sum is 62.

The square root of 3689717894 is about 60743.0481125207. The cubic root of 3689717894 is about 1545.2463300189.

The spelling of 3689717894 in words is "three billion, six hundred eighty-nine million, seven hundred seventeen thousand, eight hundred ninety-four".