3897894 has 96 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 918720.

The previous prime is 3897889. The next prime is 3897899. The reversal of 3897894 is 4987983.

It is an interprime number because it is at equal distance from previous prime (3897889) and next prime (3897899).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897899) 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 47 ways as a sum of consecutive naturals, for example, 66037 + ... + 66095.

It is an arithmetic number, because the mean of its divisors is an integer number (111720).

Almost surely, 2^3897894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3897894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362560).

3897894 is an abundant number, since it is smaller than the sum of its proper divisors (6827226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3897894 is a wasteful number, since it uses less digits than its factorization.

3897894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 95 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 3897894 is about 1974.3084865340. The cubic root of 3897894 is about 157.3777534652.

The spelling of 3897894 in words is "three million, eight hundred ninety-seven thousand, eight hundred ninety-four".