3985763868 has 48 divisors (see below), whose sum is σ = 10666808320. Its totient is φ = 1285729200.

The previous prime is 3985763827. The next prime is 3985763927. The reversal of 3985763868 is 8683675893.

It is a super-2 number, since 2×3985763868² = 31772627222908642848, 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 15 ways as a sum of consecutive naturals, for example, 591898 + ... + 598593.

Almost surely, 2^3985763868 is an apocalyptic number.

It is an amenable number.

3985763868 is an abundant number, since it is smaller than the sum of its proper divisors (6681044452).

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

3985763868 is a wasteful number, since it uses less digits than its factorization.

3985763868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190535 (or 1190527 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The square root of 3985763868 is about 63132.9063801121. The cubic root of 3985763868 is about 1585.5156091689.

The spelling of 3985763868 in words is "three billion, nine hundred eighty-five million, seven hundred sixty-three thousand, eight hundred sixty-eight".