36765991 has 2 divisors, whose sum is σ = 36765992. Its totient is φ = 36765990.

The previous prime is 36765959. The next prime is 36766003. The reversal of 36765991 is 19956763.

It is a strong prime.

It is an emirp because it is prime and its reverse (19956763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36765991 - 2⁵ = 36765959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36765191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18382995 + 18382996.

It is an arithmetic number, because the mean of its divisors is an integer number (18382996).

Almost surely, 2^36765991 is an apocalyptic number.

36765991 is a deficient number, since it is larger than the sum of its proper divisors (1).

36765991 is an equidigital number, since it uses as much as digits as its factorization.

36765991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 46.

The square root of 36765991 is about 6063.4965984983. The cubic root of 36765991 is about 332.5182035373.

The spelling of 36765991 in words is "thirty-six million, seven hundred sixty-five thousand, nine hundred ninety-one".