7206644 has 12 divisors (see below), whose sum is σ = 12728100. Its totient is φ = 3570048.

The previous prime is 7206631. The next prime is 7206649. The reversal of 7206644 is 4466027.

It can be written as a sum of positive squares in 2 ways, for example, as 5856400 + 1350244 = 2420^2 + 1162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7206649) 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, 7829 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (1060675).

Almost surely, 2^7206644 is an apocalyptic number.

It is an amenable number.

7206644 is a deficient number, since it is larger than the sum of its proper divisors (5521456).

7206644 is a wasteful number, since it uses less digits than its factorization.

7206644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16642 (or 16640 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 7206644 is about 2684.5193238269. The cubic root of 7206644 is about 193.1572541375.

The spelling of 7206644 in words is "seven million, two hundred six thousand, six hundred forty-four".