7913636 has 24 divisors (see below), whose sum is σ = 15172920. Its totient is φ = 3594752.

The previous prime is 7913627. The next prime is 7913657. The reversal of 7913636 is 6363197.

It can be written as a sum of positive squares in 4 ways, for example, as 3587236 + 4326400 = 1894^2 + 2080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7913596 and 7913605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (632205).

Almost surely, 2^7913636 is an apocalyptic number.

It is an amenable number.

7913636 is a deficient number, since it is larger than the sum of its proper divisors (7259284).

7913636 is a wasteful number, since it uses less digits than its factorization.

7913636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063 (or 4061 counting only the distinct ones).

The product of its digits is 20412, while the sum is 35.

The square root of 7913636 is about 2813.1185542028. The cubic root of 7913636 is about 199.2776945143.

The spelling of 7913636 in words is "seven million, nine hundred thirteen thousand, six hundred thirty-six".