7974644 has 6 divisors (see below), whose sum is σ = 13955634. Its totient is φ = 3987320.

The previous prime is 7974643. The next prime is 7974653. The reversal of 7974644 is 4464797.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 1276900 = 2588^2 + 1130^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7974641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996827 + ... + 996834.

It is an arithmetic number, because the mean of its divisors is an integer number (2325939).

Almost surely, 2^7974644 is an apocalyptic number.

It is an amenable number.

7974644 is a deficient number, since it is larger than the sum of its proper divisors (5980990).

7974644 is a wasteful number, since it uses less digits than its factorization.

7974644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993665 (or 1993663 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 7974644 is about 2823.9412175185. The cubic root of 7974644 is about 199.7884763676.

The spelling of 7974644 in words is "seven million, nine hundred seventy-four thousand, six hundred forty-four".