3893895 has 12 divisors (see below), whose sum is σ = 6749496. Its totient is φ = 2076720.

The previous prime is 3893891. The next prime is 3893899. The reversal of 3893895 is 5983983.

It is an interprime number because it is at equal distance from previous prime (3893891) and next prime (3893899).

It is not a de Polignac number, because 3893895 - 2² = 3893891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 86531 = 3893895 / (3 + 8 + 9 + 3 + 8 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3893895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3893891) 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 11 ways as a sum of consecutive naturals, for example, 43221 + ... + 43310.

It is an arithmetic number, because the mean of its divisors is an integer number (562458).

Almost surely, 2^3893895 is an apocalyptic number.

3893895 is a deficient number, since it is larger than the sum of its proper divisors (2855601).

3893895 is a wasteful number, since it uses less digits than its factorization.

3893895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86542 (or 86539 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 3893895 is about 1973.2954669790. The cubic root of 3893895 is about 157.3239150775.

The spelling of 3893895 in words is "three million, eight hundred ninety-three thousand, eight hundred ninety-five".