36645773 has 2 divisors, whose sum is σ = 36645774. Its totient is φ = 36645772.

The previous prime is 36645767. The next prime is 36645793. The reversal of 36645773 is 37754663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23843689 + 12802084 = 4883^2 + 3578^2 .

It is a cyclic number.

It is not a de Polignac number, because 36645773 - 2¹² = 36641677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36645773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36645793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18322886 + 18322887.

It is an arithmetic number, because the mean of its divisors is an integer number (18322887).

Almost surely, 2^36645773 is an apocalyptic number.

It is an amenable number.

36645773 is a deficient number, since it is larger than the sum of its proper divisors (1).

36645773 is an equidigital number, since it uses as much as digits as its factorization.

36645773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 41.

The square root of 36645773 is about 6053.5752246090. The cubic root of 36645773 is about 332.1553834277.

The spelling of 36645773 in words is "thirty-six million, six hundred forty-five thousand, seven hundred seventy-three".