7386644 has 12 divisors (see below), whose sum is σ = 13072500. Its totient is φ = 3651648.

The previous prime is 7386641. The next prime is 7386667. The reversal of 7386644 is 4466837.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 6697744 = 830^2 + 2588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7386598 and 7386607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7386641) 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, 10019 + ... + 10730.

It is an arithmetic number, because the mean of its divisors is an integer number (1089375).

Almost surely, 2^7386644 is an apocalyptic number.

It is an amenable number.

7386644 is a deficient number, since it is larger than the sum of its proper divisors (5685856).

7386644 is a wasteful number, since it uses less digits than its factorization.

7386644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20842 (or 20840 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 7386644 is about 2717.8381114408. The cubic root of 7386644 is about 194.7522077197.

The spelling of 7386644 in words is "seven million, three hundred eighty-six thousand, six hundred forty-four".