36735813 has 12 divisors (see below), whose sum is σ = 53340300. Its totient is φ = 24362496.

The previous prime is 36735781. The next prime is 36735823. The reversal of 36735813 is 31853763.

36735813 is a `hidden beast` number, since 3 + 6 + 73 + 581 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 30669444 = 2463^2 + 5538^2 .

It is not a de Polignac number, because 36735813 - 2⁵ = 36735781 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36735823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8838 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (4445025).

Almost surely, 2^36735813 is an apocalyptic number.

It is an amenable number.

36735813 is a deficient number, since it is larger than the sum of its proper divisors (16604487).

36735813 is a wasteful number, since it uses less digits than its factorization.

36735813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21348 (or 21345 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 36735813 is about 6061.0075895019. The cubic root of 36735813 is about 332.4272002226.

The spelling of 36735813 in words is "thirty-six million, seven hundred thirty-five thousand, eight hundred thirteen".