3636973 has 2 divisors, whose sum is σ = 3636974. Its totient is φ = 3636972.

The previous prime is 3636947. The next prime is 3636991. The reversal of 3636973 is 3796363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3636649 + 324 = 1907^2 + 18^2 .

It is an emirp because it is prime and its reverse (3796363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3636973 - 2²¹ = 1539821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3636943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1818486 + 1818487.

It is an arithmetic number, because the mean of its divisors is an integer number (1818487).

Almost surely, 2^3636973 is an apocalyptic number.

It is an amenable number.

3636973 is a deficient number, since it is larger than the sum of its proper divisors (1).

3636973 is an equidigital number, since it uses as much as digits as its factorization.

3636973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 37.

The square root of 3636973 is about 1907.0849482915. The cubic root of 3636973 is about 153.7847811678.

The spelling of 3636973 in words is "three million, six hundred thirty-six thousand, nine hundred seventy-three".