6522644 has 12 divisors (see below), whose sum is σ = 11435424. Its totient is φ = 3255384.

The previous prime is 6522641. The next prime is 6522661. The reversal of 6522644 is 4462256.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6522641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (952952).

Almost surely, 2^6522644 is an apocalyptic number.

It is an amenable number.

6522644 is a deficient number, since it is larger than the sum of its proper divisors (4912780).

6522644 is a wasteful number, since it uses less digits than its factorization.

6522644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974 (or 2972 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 6522644 is about 2553.9467496406. The cubic root of 6522644 is about 186.8420220104.

The spelling of 6522644 in words is "six million, five hundred twenty-two thousand, six hundred forty-four".