3992168 has 8 divisors (see below), whose sum is σ = 7485330. Its totient is φ = 1996080.

The previous prime is 3992159. The next prime is 3992171. The reversal of 3992168 is 8612993.

It can be written as a sum of positive squares in only one way, i.e., 3833764 + 158404 = 1958^2 + 398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249503 + ... + 249518.

Almost surely, 2^3992168 is an apocalyptic number.

It is an amenable number.

3992168 is a deficient number, since it is larger than the sum of its proper divisors (3493162).

3992168 is a wasteful number, since it uses less digits than its factorization.

3992168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499027 (or 499023 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 3992168 is about 1998.0410406195. The cubic root of 3992168 is about 158.6364331287.

The spelling of 3992168 in words is "three million, nine hundred ninety-two thousand, one hundred sixty-eight".