3613856 has 24 divisors (see below), whose sum is σ = 7346304. Its totient is φ = 1748160.

The previous prime is 3613847. The next prime is 3613867. The reversal of 3613856 is 6583163.

3613856 = 30² + 31² + ... + 221².

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (306096).

Almost surely, 2^3613856 is an apocalyptic number.

It is an amenable number.

3613856 is an abundant number, since it is smaller than the sum of its proper divisors (3732448).

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

3613856 is a wasteful number, since it uses less digits than its factorization.

3613856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684 (or 3676 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 3613856 is about 1901.0144660154. The cubic root of 3613856 is about 153.4582640726.

The spelling of 3613856 in words is "three million, six hundred thirteen thousand, eight hundred fifty-six".