3992331 has 32 divisors (see below), whose sum is σ = 6594048. Its totient is φ = 2096640.

The previous prime is 3992327. The next prime is 3992333. The reversal of 3992331 is 1332993.

It is not a de Polignac number, because 3992331 - 2² = 3992327 is a prime.

It is a super-2 number, since 2×3992331² = 31877413627122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992333) 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 31 ways as a sum of consecutive naturals, for example, 18816 + ... + 19026.

It is an arithmetic number, because the mean of its divisors is an integer number (206064).

Almost surely, 2^3992331 is an apocalyptic number.

3992331 is a deficient number, since it is larger than the sum of its proper divisors (2601717).

3992331 is a wasteful number, since it uses less digits than its factorization.

3992331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291.

The product of its digits is 4374, while the sum is 30.

The square root of 3992331 is about 1998.0818301561. The cubic root of 3992331 is about 158.6385921383.

The spelling of 3992331 in words is "three million, nine hundred ninety-two thousand, three hundred thirty-one".