3656846 has 4 divisors (see below), whose sum is σ = 5485272. Its totient is φ = 1828422.

The previous prime is 3656843. The next prime is 3656857. The reversal of 3656846 is 6486563.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914210 + ... + 914213.

It is an arithmetic number, because the mean of its divisors is an integer number (1371318).

Almost surely, 2^3656846 is an apocalyptic number.

3656846 is a deficient number, since it is larger than the sum of its proper divisors (1828426).

3656846 is a wasteful number, since it uses less digits than its factorization.

3656846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828425.

The product of its digits is 103680, while the sum is 38.

The square root of 3656846 is about 1912.2881582021. The cubic root of 3656846 is about 154.0643740540.

The spelling of 3656846 in words is "three million, six hundred fifty-six thousand, eight hundred forty-six".