3894656 has 16 divisors (see below), whose sum is σ = 7759140. Its totient is φ = 1947264.

The previous prime is 3894637. The next prime is 3894673. The reversal of 3894656 is 6564983.

3894656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15086 + ... + 15341.

Almost surely, 2^3894656 is an apocalyptic number.

It is an amenable number.

3894656 is a deficient number, since it is larger than the sum of its proper divisors (3864484).

3894656 is an equidigital number, since it uses as much as digits as its factorization.

3894656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30441 (or 30429 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 3894656 is about 1973.4882822049. The cubic root of 3894656 is about 157.3341632310.

The spelling of 3894656 in words is "three million, eight hundred ninety-four thousand, six hundred fifty-six".