36813812 has 12 divisors (see below), whose sum is σ = 73627680. Its totient is φ = 15777336.

The previous prime is 36813809. The next prime is 36813841. The reversal of 36813812 is 21831863.

It is a happy number.

36813812 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657362 + ... + 657417.

It is an arithmetic number, because the mean of its divisors is an integer number (6135640).

Almost surely, 2^36813812 is an apocalyptic number.

It is an amenable number.

36813812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36813812 is a wasteful number, since it uses less digits than its factorization.

36813812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314790 (or 1314788 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 36813812 is about 6067.4386688289. The cubic root of 36813812 is about 332.6623083049.

The spelling of 36813812 in words is "thirty-six million, eight hundred thirteen thousand, eight hundred twelve".