3894664 has 8 divisors (see below), whose sum is σ = 7302510. Its totient is φ = 1947328.

The previous prime is 3894637. The next prime is 3894673. The reversal of 3894664 is 4664983.

It can be written as a sum of positive squares in only one way, i.e., 2125764 + 1768900 = 1458^2 + 1330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243409 + ... + 243424.

Almost surely, 2^3894664 is an apocalyptic number.

It is an amenable number.

3894664 is a deficient number, since it is larger than the sum of its proper divisors (3407846).

3894664 is a wasteful number, since it uses less digits than its factorization.

3894664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486839 (or 486835 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 3894664 is about 1973.4903090717. The cubic root of 3894664 is about 157.3342709574.

The spelling of 3894664 in words is "three million, eight hundred ninety-four thousand, six hundred sixty-four".