36192821 has 12 divisors (see below), whose sum is σ = 42206220. Its totient is φ = 30945600.

The previous prime is 36192809. The next prime is 36192839. The reversal of 36192821 is 12829163.

It can be written as a sum of positive squares in 2 ways, for example, as 33756100 + 2436721 = 5810^2 + 1561^2 .

It is not a de Polignac number, because 36192821 - 2⁶ = 36192757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36192851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28835 + ... + 30063.

It is an arithmetic number, because the mean of its divisors is an integer number (3517185).

Almost surely, 2^36192821 is an apocalyptic number.

It is an amenable number.

36192821 is a deficient number, since it is larger than the sum of its proper divisors (6013399).

36192821 is a wasteful number, since it uses less digits than its factorization.

36192821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844 (or 1837 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 36192821 is about 6016.0469579284. The cubic root of 36192821 is about 330.7811948592.

The spelling of 36192821 in words is "thirty-six million, one hundred ninety-two thousand, eight hundred twenty-one".