7873636 has 27 divisors (see below), whose sum is σ = 14643993. Its totient is φ = 3703920.

The previous prime is 7873633. The next prime is 7873651. The reversal of 7873636 is 6363787.

The square root of 7873636 is 2806.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 256036 + 7617600 = 506^2 + 2760^2 .

It is a d-powerful number, because it can be written as 7³ + 8⁷ + 7⁸ + 3⁷ + 6⁴ + 3⁸ + 6⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7873631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 129046 + ... + 129106.

Almost surely, 2^7873636 is an apocalyptic number.

7873636 is the 2806-th square number.

It is an amenable number.

7873636 is a deficient number, since it is larger than the sum of its proper divisors (6770357).

7873636 is a wasteful number, since it uses less digits than its factorization.

7873636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 86 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The cubic root of 7873636 is about 198.9413730987.

The spelling of 7873636 in words is "seven million, eight hundred seventy-three thousand, six hundred thirty-six".