3996174978 has 12 divisors (see below), whose sum is σ = 8658379158. Its totient is φ = 1332058320.

The previous prime is 3996174971. The next prime is 3996175013. The reversal of 3996174978 is 8794716993.

3996174978 is a `hidden beast` number, since 3 + 9 + 9 + 617 + 4 + 9 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2275003809 + 1721171169 = 47697^2 + 41487^2 .

It is not an unprimeable number, because it can be changed into a prime (3996174971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111004843 + ... + 111004878.

Almost surely, 2^3996174978 is an apocalyptic number.

3996174978 is an abundant number, since it is smaller than the sum of its proper divisors (4662204180).

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

3996174978 is a wasteful number, since it uses less digits than its factorization.

3996174978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222009729 (or 222009726 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 63.

The square root of 3996174978 is about 63215.3065166974. The cubic root of 3996174978 is about 1586.8949036026.

The spelling of 3996174978 in words is "three billion, nine hundred ninety-six million, one hundred seventy-four thousand, nine hundred seventy-eight".