3890887 has 32 divisors (see below), whose sum is σ = 5483520. Its totient is φ = 2676960.

The previous prime is 3890879. The next prime is 3890927. The reversal of 3890887 is 7880983.

It is a happy number.

It is not a de Polignac number, because 3890887 - 2³ = 3890879 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169158 + ... + 169180.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

Almost surely, 2^3890887 is an apocalyptic number.

3890887 is a deficient number, since it is larger than the sum of its proper divisors (1592633).

3890887 is a wasteful number, since it uses less digits than its factorization.

3890887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 3890887 is about 1972.5331429408. The cubic root of 3890887 is about 157.2833941899.

The spelling of 3890887 in words is "three million, eight hundred ninety thousand, eight hundred eighty-seven".