36866173 has 2 divisors, whose sum is σ = 36866174. Its totient is φ = 36866172.

The previous prime is 36866153. The next prime is 36866177. The reversal of 36866173 is 37166863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 4853209 = 5658^2 + 2203^2 .

It is an emirp because it is prime and its reverse (37166863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36866173 - 2²⁵ = 3311741 is a prime.

It is a super-2 number, since 2×36866173² = 2718229423331858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36866177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18433086 + 18433087.

It is an arithmetic number, because the mean of its divisors is an integer number (18433087).

Almost surely, 2^36866173 is an apocalyptic number.

It is an amenable number.

36866173 is a deficient number, since it is larger than the sum of its proper divisors (1).

36866173 is an equidigital number, since it uses as much as digits as its factorization.

36866173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 36866173 is about 6071.7520535674. The cubic root of 36866173 is about 332.8199509437.

The spelling of 36866173 in words is "thirty-six million, eight hundred sixty-six thousand, one hundred seventy-three".