36218489 has 2 divisors, whose sum is σ = 36218490. Its totient is φ = 36218488.

The previous prime is 36218471. The next prime is 36218521. The reversal of 36218489 is 98481263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32684089 + 3534400 = 5717^2 + 1880^2 .

It is an emirp because it is prime and its reverse (98481263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36218489 - 2⁸ = 36218233 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 (36208489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18109244 + 18109245.

It is an arithmetic number, because the mean of its divisors is an integer number (18109245).

Almost surely, 2^36218489 is an apocalyptic number.

It is an amenable number.

36218489 is a deficient number, since it is larger than the sum of its proper divisors (1).

36218489 is an equidigital number, since it uses as much as digits as its factorization.

36218489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 36218489 is about 6018.1798743474. The cubic root of 36218489 is about 330.8593732116.

The spelling of 36218489 in words is "thirty-six million, two hundred eighteen thousand, four hundred eighty-nine".