36686669 has 2 divisors, whose sum is σ = 36686670. Its totient is φ = 36686668.

The previous prime is 36686651. The next prime is 36686723. The reversal of 36686669 is 96668663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33582025 + 3104644 = 5795^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 36686669 - 2⁸ = 36686413 is a prime.

It is a super-2 number, since 2×36686669² = 2691823364631122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36616669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18343334 + 18343335.

It is an arithmetic number, because the mean of its divisors is an integer number (18343335).

Almost surely, 2^36686669 is an apocalyptic number.

It is an amenable number.

36686669 is a deficient number, since it is larger than the sum of its proper divisors (1).

36686669 is an equidigital number, since it uses as much as digits as its factorization.

36686669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 50.

The square root of 36686669 is about 6056.9521213231. The cubic root of 36686669 is about 332.2788972328.

The spelling of 36686669 in words is "thirty-six million, six hundred eighty-six thousand, six hundred sixty-nine".