3923983656 has 128 divisors (see below), whose sum is σ = 11671776000. Its totient is φ = 1217120256.

The previous prime is 3923983579. The next prime is 3923983663. The reversal of 3923983656 is 6563893293.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320805 + ... + 332811.

It is an arithmetic number, because the mean of its divisors is an integer number (91185750).

Almost surely, 2^3923983656 is an apocalyptic number.

3923983656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3923983656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5835888000).

3923983656 is an abundant number, since it is smaller than the sum of its proper divisors (7747792344).

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

3923983656 is a wasteful number, since it uses less digits than its factorization.

3923983656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128 (or 12118 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The square root of 3923983656 is about 62641.7085973874. The cubic root of 3923983656 is about 1577.2809689508.

The spelling of 3923983656 in words is "three billion, nine hundred twenty-three million, nine hundred eighty-three thousand, six hundred fifty-six".