3820564 has 24 divisors (see below), whose sum is σ = 7531776. Its totient is φ = 1680000.

The previous prime is 3820549. The next prime is 3820567. The reversal of 3820564 is 4650283.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (313824).

Almost surely, 2^3820564 is an apocalyptic number.

It is an amenable number.

3820564 is a deficient number, since it is larger than the sum of its proper divisors (3711212).

3820564 is a wasteful number, since it uses less digits than its factorization.

3820564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2845 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3820564 is about 1954.6263069958. The cubic root of 3820564 is about 156.3300594521.

It can be divided in two parts, 38 and 20564, that added together give a palindrome (20602).

The spelling of 3820564 in words is "three million, eight hundred twenty thousand, five hundred sixty-four".