6644692 has 6 divisors (see below), whose sum is σ = 11628218. Its totient is φ = 3322344.

The previous prime is 6644681. The next prime is 6644717. The reversal of 6644692 is 2964466.

It can be written as a sum of positive squares in only one way, i.e., 6533136 + 111556 = 2556^2 + 334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830583 + ... + 830590.

Almost surely, 2^6644692 is an apocalyptic number.

It is an amenable number.

6644692 is a deficient number, since it is larger than the sum of its proper divisors (4983526).

6644692 is a wasteful number, since it uses less digits than its factorization.

6644692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661177 (or 1661175 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 6644692 is about 2577.7300091359. The cubic root of 6644692 is about 188.0001886221. Note that the first 3 decimals are identical.

It can be divided in two parts, 664 and 4692, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 6644692 in words is "six million, six hundred forty-four thousand, six hundred ninety-two".