36077809 has 2 divisors, whose sum is σ = 36077810. Its totient is φ = 36077808.

The previous prime is 36077773. The next prime is 36077819. The reversal of 36077809 is 90877063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 2900209 = 5760^2 + 1703^2 .

It is an emirp because it is prime and its reverse (90877063) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36077809 - 2¹¹ = 36075761 is a prime.

It is not a weakly prime, because it can be changed into another prime (36077819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18038904 + 18038905.

It is an arithmetic number, because the mean of its divisors is an integer number (18038905).

Almost surely, 2^36077809 is an apocalyptic number.

It is an amenable number.

36077809 is a deficient number, since it is larger than the sum of its proper divisors (1).

36077809 is an equidigital number, since it uses as much as digits as its factorization.

36077809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 36077809 is about 6006.4805835031. The cubic root of 36077809 is about 330.4304422788.

The spelling of 36077809 in words is "thirty-six million, seventy-seven thousand, eight hundred nine".