36885385 has 4 divisors (see below), whose sum is σ = 44262468. Its totient is φ = 29508304.

The previous prime is 36885379. The next prime is 36885389. The reversal of 36885385 is 58358863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58358863 = 1627 ⋅35869.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 9259849 = 5256^2 + 3043^2 .

It is a cyclic number.

It is not a de Polignac number, because 36885385 - 2¹¹ = 36883337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36885389) 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, 3688534 + ... + 3688543.

It is an arithmetic number, because the mean of its divisors is an integer number (11065617).

Almost surely, 2^36885385 is an apocalyptic number.

It is an amenable number.

36885385 is a deficient number, since it is larger than the sum of its proper divisors (7377083).

36885385 is an equidigital number, since it uses as much as digits as its factorization.

36885385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377082.

The product of its digits is 691200, while the sum is 46.

The square root of 36885385 is about 6073.3339279180. Note that the first 3 decimals coincide. The cubic root of 36885385 is about 332.8777548506.

The spelling of 36885385 in words is "thirty-six million, eight hundred eighty-five thousand, three hundred eighty-five".