36564643 has 2 divisors, whose sum is σ = 36564644. Its totient is φ = 36564642.

The previous prime is 36564629. The next prime is 36564667. The reversal of 36564643 is 34646563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36564643 - 2⁵ = 36564611 is a prime.

It is not a weakly prime, because it can be changed into another prime (36564613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18282321 + 18282322.

It is an arithmetic number, because the mean of its divisors is an integer number (18282322).

Almost surely, 2^36564643 is an apocalyptic number.

36564643 is a deficient number, since it is larger than the sum of its proper divisors (1).

36564643 is an equidigital number, since it uses as much as digits as its factorization.

36564643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 37.

The square root of 36564643 is about 6046.8705129182. The cubic root of 36564643 is about 331.9100829462.

The spelling of 36564643 in words is "thirty-six million, five hundred sixty-four thousand, six hundred forty-three".