3992287 has 6 divisors (see below), whose sum is σ = 4323192. Its totient is φ = 3685032.

The previous prime is 3992279. The next prime is 3992291. The reversal of 3992287 is 7822993.

It is not a de Polignac number, because 3992287 - 2³ = 3992279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992207) 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, 11643 + ... + 11980.

It is an arithmetic number, because the mean of its divisors is an integer number (720532).

Almost surely, 2^3992287 is an apocalyptic number.

3992287 is a deficient number, since it is larger than the sum of its proper divisors (330905).

3992287 is a wasteful number, since it uses less digits than its factorization.

3992287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23649 (or 23636 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 3992287 is about 1998.0708195657. The cubic root of 3992287 is about 158.6380093439.

The spelling of 3992287 in words is "three million, nine hundred ninety-two thousand, two hundred eighty-seven".