36365891 has 2 divisors, whose sum is σ = 36365892. Its totient is φ = 36365890.

The previous prime is 36365851. The next prime is 36365933. The reversal of 36365891 is 19856363.

It is a weak prime.

It is an emirp because it is prime and its reverse (19856363) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36365891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36365851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18182945 + 18182946.

It is an arithmetic number, because the mean of its divisors is an integer number (18182946).

Almost surely, 2^36365891 is an apocalyptic number.

36365891 is a deficient number, since it is larger than the sum of its proper divisors (1).

36365891 is an equidigital number, since it uses as much as digits as its factorization.

36365891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 36365891 is about 6030.4138332290. The cubic root of 36365891 is about 331.3076094890.

The spelling of 36365891 in words is "thirty-six million, three hundred sixty-five thousand, eight hundred ninety-one".