3992969568 has 96 divisors (see below), whose sum is σ = 12147770880. Its totient is φ = 1124766720.

The previous prime is 3992969509. The next prime is 3992969621. The reversal of 3992969568 is 8659692993.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 3992969499 and 3992969508.

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, 5868 + ... + 89556.

It is an arithmetic number, because the mean of its divisors is an integer number (126539280).

Almost surely, 2^3992969568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3992969568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6073885440).

3992969568 is an abundant number, since it is smaller than the sum of its proper divisors (8154801312).

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

3992969568 is a wasteful number, since it uses less digits than its factorization.

3992969568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83780 (or 83772 counting only the distinct ones).

The product of its digits is 56687040, while the sum is 66.

The square root of 3992969568 is about 63189.9483145856. The cubic root of 3992969568 is about 1586.4704969754.

The spelling of 3992969568 in words is "three billion, nine hundred ninety-two million, nine hundred sixty-nine thousand, five hundred sixty-eight".