3992887 has 2 divisors, whose sum is σ = 3992888. Its totient is φ = 3992886.

The previous prime is 3992873. The next prime is 3992899. The reversal of 3992887 is 7882993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3992887 - 2¹⁹ = 3468599 is a prime.

It is a Chen prime.

3992887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3992837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996443 + 1996444.

It is an arithmetic number, because the mean of its divisors is an integer number (1996444).

Almost surely, 2^3992887 is an apocalyptic number.

3992887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992887 is an equidigital number, since it uses as much as digits as its factorization.

3992887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 3992887 is about 1998.2209587531. The cubic root of 3992887 is about 158.6459561706.

The spelling of 3992887 in words is "three million, nine hundred ninety-two thousand, eight hundred eighty-seven".