3983978862 has 24 divisors (see below), whose sum is σ = 9086268360. Its totient is φ = 1258098480.

The previous prime is 3983978861. The next prime is 3983978863. The reversal of 3983978862 is 2688793893.

It is an interprime number because it is at equal distance from previous prime (3983978861) and next prime (3983978863).

It is a super-3 number, since 3×3983978862³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3983978862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3983978861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5824189 + ... + 5824872.

It is an arithmetic number, because the mean of its divisors is an integer number (378594515).

Almost surely, 2^3983978862 is an apocalyptic number.

3983978862 is an abundant number, since it is smaller than the sum of its proper divisors (5102289498).

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

3983978862 is a wasteful number, since it uses less digits than its factorization.

3983978862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11649088 (or 11649085 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 3983978862 is about 63118.7679062258. The cubic root of 3983978862 is about 1585.2788852045.

The spelling of 3983978862 in words is "three billion, nine hundred eighty-three million, nine hundred seventy-eight thousand, eight hundred sixty-two".