3890087 has 4 divisors (see below), whose sum is σ = 3948216. Its totient is φ = 3831960.

The previous prime is 3890083. The next prime is 3890111. The reversal of 3890087 is 7800983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7800983 = 71 ⋅109873.

It is a cyclic number.

It is not a de Polignac number, because 3890087 - 2² = 3890083 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 (3890083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28964 + ... + 29097.

It is an arithmetic number, because the mean of its divisors is an integer number (987054).

Almost surely, 2^3890087 is an apocalyptic number.

3890087 is a deficient number, since it is larger than the sum of its proper divisors (58129).

3890087 is an equidigital number, since it uses as much as digits as its factorization.

3890087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58128.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 3890087 is about 1972.3303475838. The cubic root of 3890087 is about 157.2726138426.

The spelling of 3890087 in words is "three million, eight hundred ninety thousand, eighty-seven".