36057809 has 2 divisors, whose sum is σ = 36057810. Its totient is φ = 36057808.

The previous prime is 36057803. The next prime is 36057887. The reversal of 36057809 is 90875063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30558784 + 5499025 = 5528^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 36057809 - 2¹⁶ = 35992273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36057803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18028904 + 18028905.

It is an arithmetic number, because the mean of its divisors is an integer number (18028905).

Almost surely, 2^36057809 is an apocalyptic number.

It is an amenable number.

36057809 is a deficient number, since it is larger than the sum of its proper divisors (1).

36057809 is an equidigital number, since it uses as much as digits as its factorization.

36057809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 36057809 is about 6004.8154842593. The cubic root of 36057809 is about 330.3693721401.

The spelling of 36057809 in words is "thirty-six million, fifty-seven thousand, eight hundred nine".