36985565 has 4 divisors (see below), whose sum is σ = 44382684. Its totient is φ = 29588448.

The previous prime is 36985519. The next prime is 36985577. The reversal of 36985565 is 56558963.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56558963 = 331 ⋅170873.

It can be written as a sum of positive squares in 2 ways, for example, as 4301476 + 32684089 = 2074^2 + 5717^2 .

It is a cyclic number.

It is not a de Polignac number, because 36985565 - 2⁸ = 36985309 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

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, 3698552 + ... + 3698561.

It is an arithmetic number, because the mean of its divisors is an integer number (11095671).

Almost surely, 2^36985565 is an apocalyptic number.

It is an amenable number.

36985565 is a deficient number, since it is larger than the sum of its proper divisors (7397119).

36985565 is an equidigital number, since it uses as much as digits as its factorization.

36985565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397118.

The product of its digits is 972000, while the sum is 47.

The square root of 36985565 is about 6081.5758648561. The cubic root of 36985565 is about 333.1788456339.

The spelling of 36985565 in words is "thirty-six million, nine hundred eighty-five thousand, five hundred sixty-five".