3893887 has 4 divisors (see below), whose sum is σ = 3900816. Its totient is φ = 3886960.

The previous prime is 3893881. The next prime is 3893891. The reversal of 3893887 is 7883983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3893887 - 2⁷ = 3893759 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 (3893881) 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, 2539 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (975204).

Almost surely, 2^3893887 is an apocalyptic number.

3893887 is a deficient number, since it is larger than the sum of its proper divisors (6929).

3893887 is an equidigital number, since it uses as much as digits as its factorization.

3893887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928.

The product of its digits is 290304, while the sum is 46.

The square root of 3893887 is about 1973.2934399121. The cubic root of 3893887 is about 157.3238073368.

The spelling of 3893887 in words is "three million, eight hundred ninety-three thousand, eight hundred eighty-seven".