3556864 has 20 divisors (see below), whose sum is σ = 7107804. Its totient is φ = 1778176.

The previous prime is 3556853. The next prime is 3556877. The reversal of 3556864 is 4686553.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2962 + ... + 3985.

Almost surely, 2^3556864 is an apocalyptic number.

It is an amenable number.

3556864 is a deficient number, since it is larger than the sum of its proper divisors (3550940).

3556864 is an frugal number, since it uses more digits than its factorization.

3556864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965 (or 6949 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 3556864 is about 1885.9650049776. The cubic root of 3556864 is about 152.6472858150.

The spelling of 3556864 in words is "three million, five hundred fifty-six thousand, eight hundred sixty-four".