36856213 has 6 divisors (see below), whose sum is σ = 37235042. Its totient is φ = 36481200.

The previous prime is 36856207. The next prime is 36856223. The reversal of 36856213 is 31265863.

It can be written as a sum of positive squares in 3 ways, for example, as 11675889 + 25180324 = 3417^2 + 5018^2 .

It is not a de Polignac number, because 36856213 - 2¹⁷ = 36725141 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 (36856223) 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 5 ways as a sum of consecutive naturals, for example, 8395 + ... + 12007.

Almost surely, 2^36856213 is an apocalyptic number.

It is an amenable number.

36856213 is a deficient number, since it is larger than the sum of its proper divisors (378829).

36856213 is an equidigital number, since it uses as much as digits as its factorization.

36856213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815 (or 3714 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 36856213 is about 6070.9318065681. The cubic root of 36856213 is about 332.7899759919.

The spelling of 36856213 in words is "thirty-six million, eight hundred fifty-six thousand, two hundred thirteen".