3992172 has 24 divisors (see below), whose sum is σ = 9492336. Its totient is φ = 1305408.

The previous prime is 3992171. The next prime is 3992201. The reversal of 3992172 is 2712993.

It is not an unprimeable number, because it can be changed into a prime (3992171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2503 + ... + 3774.

It is an arithmetic number, because the mean of its divisors is an integer number (395514).

Almost surely, 2^3992172 is an apocalyptic number.

It is an amenable number.

3992172 is an abundant number, since it is smaller than the sum of its proper divisors (5500164).

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

3992172 is a wasteful number, since it uses less digits than its factorization.

3992172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6337 (or 6335 counting only the distinct ones).

The product of its digits is 6804, while the sum is 33.

The square root of 3992172 is about 1998.0420415997. The cubic root of 3992172 is about 158.6364861113.

It can be divided in two parts, 39921 and 72, that added together give a palindrome (39993).

The spelling of 3992172 in words is "three million, nine hundred ninety-two thousand, one hundred seventy-two".