36366809 has 2 divisors, whose sum is σ = 36366810. Its totient is φ = 36366808.

The previous prime is 36366769. The next prime is 36366821. The reversal of 36366809 is 90866363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35366809 + 1000000 = 5947^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 36366809 - 2²⁰ = 35318233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36366829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18183404 + 18183405.

It is an arithmetic number, because the mean of its divisors is an integer number (18183405).

Almost surely, 2^36366809 is an apocalyptic number.

It is an amenable number.

36366809 is a deficient number, since it is larger than the sum of its proper divisors (1).

36366809 is an equidigital number, since it uses as much as digits as its factorization.

36366809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 36366809 is about 6030.4899469280. The cubic root of 36366809 is about 331.3103972462.

The spelling of 36366809 in words is "thirty-six million, three hundred sixty-six thousand, eight hundred nine".