36243689 has 2 divisors, whose sum is σ = 36243690. Its totient is φ = 36243688.

The previous prime is 36243637. The next prime is 36243703. The reversal of 36243689 is 98634263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20403289 + 15840400 = 4517^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36243689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36243289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18121844 + 18121845.

It is an arithmetic number, because the mean of its divisors is an integer number (18121845).

Almost surely, 2^36243689 is an apocalyptic number.

It is an amenable number.

36243689 is a deficient number, since it is larger than the sum of its proper divisors (1).

36243689 is an equidigital number, since it uses as much as digits as its factorization.

36243689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 36243689 is about 6020.2731665598. The cubic root of 36243689 is about 330.9360902279.

The spelling of 36243689 in words is "thirty-six million, two hundred forty-three thousand, six hundred eighty-nine".