7136644 has 12 divisors (see below), whose sum is σ = 12508300. Its totient is φ = 3562848.

The previous prime is 7136627. The next prime is 7136659. The reversal of 7136644 is 4466317.

It can be written as a sum of positive squares in 2 ways, for example, as 3572100 + 3564544 = 1890^2 + 1888^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442 + ... + 5110.

Almost surely, 2^7136644 is an apocalyptic number.

It is an amenable number.

7136644 is a deficient number, since it is larger than the sum of its proper divisors (5371656).

7136644 is a wasteful number, since it uses less digits than its factorization.

7136644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2740 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 7136644 is about 2671.4497936514. The cubic root of 7136644 is about 192.5298227815.

The spelling of 7136644 in words is "seven million, one hundred thirty-six thousand, six hundred forty-four".