3992087 has 16 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 3352800.

The previous prime is 3992083. The next prime is 3992089. The reversal of 3992087 is 7802993.

It is not a de Polignac number, because 3992087 - 2² = 3992083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3992087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992081) 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 15 ways as a sum of consecutive naturals, for example, 7589 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (293760).

Almost surely, 2^3992087 is an apocalyptic number.

3992087 is a deficient number, since it is larger than the sum of its proper divisors (708073).

3992087 is a wasteful number, since it uses less digits than its factorization.

3992087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3992087 is about 1998.0207706628. The cubic root of 3992087 is about 158.6353602248.

The spelling of 3992087 in words is "three million, nine hundred ninety-two thousand, eighty-seven".