3663894 has 32 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 1114272.

The previous prime is 3663893. The next prime is 3663899. The reversal of 3663894 is 4983663.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8127 + ... + 8565.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^3663894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3663894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3991680).

3663894 is an abundant number, since it is smaller than the sum of its proper divisors (4319466).

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

3663894 is a wasteful number, since it uses less digits than its factorization.

3663894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

The product of its digits is 93312, while the sum is 39.

The square root of 3663894 is about 1914.1300896230. The cubic root of 3663894 is about 154.1632888798.

The spelling of 3663894 in words is "three million, six hundred sixty-three thousand, eight hundred ninety-four".