36261997 has 2 divisors, whose sum is σ = 36261998. Its totient is φ = 36261996.

The previous prime is 36261959. The next prime is 36262019. The reversal of 36261997 is 79916263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 17547721 = 4326^2 + 4189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36261997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36265997) 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, 18130998 + 18130999.

It is an arithmetic number, because the mean of its divisors is an integer number (18130999).

Almost surely, 2^36261997 is an apocalyptic number.

It is an amenable number.

36261997 is a deficient number, since it is larger than the sum of its proper divisors (1).

36261997 is an equidigital number, since it uses as much as digits as its factorization.

36261997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 43.

The square root of 36261997 is about 6021.7935036001. The cubic root of 36261997 is about 330.9918034498.

The spelling of 36261997 in words is "thirty-six million, two hundred sixty-one thousand, nine hundred ninety-seven".