73636636 has 12 divisors (see below), whose sum is σ = 128942128. Its totient is φ = 36796032.

The previous prime is 73636631. The next prime is 73636637. The reversal of 73636636 is 63663637.

It is a super-2 number, since 2×73636636² = 10844708322792992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73636631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3505 + ... + 12631.

Almost surely, 2^73636636 is an apocalyptic number.

It is an amenable number.

73636636 is a deficient number, since it is larger than the sum of its proper divisors (55305492).

73636636 is a wasteful number, since it uses less digits than its factorization.

73636636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148 (or 11146 counting only the distinct ones).

The product of its digits is 244944, while the sum is 40.

The square root of 73636636 is about 8581.1791730508. The cubic root of 73636636 is about 419.1453444345.

The spelling of 73636636 in words is "seventy-three million, six hundred thirty-six thousand, six hundred thirty-six".