74683636 has 6 divisors (see below), whose sum is σ = 130696370. Its totient is φ = 37341816.

The previous prime is 74683607. The next prime is 74683643. The reversal of 74683636 is 63638647.

It can be written as a sum of positive squares in only one way, i.e., 64160100 + 10523536 = 8010^2 + 3244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74683592 and 74683601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9335451 + ... + 9335458.

Almost surely, 2^74683636 is an apocalyptic number.

It is an amenable number.

74683636 is a deficient number, since it is larger than the sum of its proper divisors (56012734).

74683636 is a wasteful number, since it uses less digits than its factorization.

74683636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18670913 (or 18670911 counting only the distinct ones).

The product of its digits is 435456, while the sum is 43.

The square root of 74683636 is about 8641.9694514619. The cubic root of 74683636 is about 421.1225375499.

The spelling of 74683636 in words is "seventy-four million, six hundred eighty-three thousand, six hundred thirty-six".