36664663 has 4 divisors (see below), whose sum is σ = 41902480. Its totient is φ = 31426848.

The previous prime is 36664651. The next prime is 36664679. The reversal of 36664663 is 36646663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36664663 - 2²⁵ = 3110231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36664603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618898 + ... + 2618911.

It is an arithmetic number, because the mean of its divisors is an integer number (10475620).

Almost surely, 2^36664663 is an apocalyptic number.

36664663 is a deficient number, since it is larger than the sum of its proper divisors (5237817).

36664663 is an equidigital number, since it uses as much as digits as its factorization.

36664663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237816.

The product of its digits is 279936, while the sum is 40.

The square root of 36664663 is about 6055.1352586049. The cubic root of 36664663 is about 332.2124462837.

It can be divided in two parts, 3 and 6664663, that added together give a palindrome (6664666).

The spelling of 36664663 in words is "thirty-six million, six hundred sixty-four thousand, six hundred sixty-three".