36634985 has 4 divisors (see below), whose sum is σ = 43961988. Its totient is φ = 29307984.

The previous prime is 36634967. The next prime is 36634987. The reversal of 36634985 is 58943663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58943663 = 419 ⋅140677.

It can be written as a sum of positive squares in 2 ways, for example, as 13719616 + 22915369 = 3704^2 + 4787^2 .

It is a cyclic number.

It is not a de Polignac number, because 36634985 - 2²⁰ = 35586409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36634987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3663494 + ... + 3663503.

It is an arithmetic number, because the mean of its divisors is an integer number (10990497).

Almost surely, 2^36634985 is an apocalyptic number.

It is an amenable number.

36634985 is a deficient number, since it is larger than the sum of its proper divisors (7327003).

36634985 is an equidigital number, since it uses as much as digits as its factorization.

36634985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7327002.

The product of its digits is 466560, while the sum is 44.

The square root of 36634985 is about 6052.6841153326. The cubic root of 36634985 is about 332.1227862716.

The spelling of 36634985 in words is "thirty-six million, six hundred thirty-four thousand, nine hundred eighty-five".