36320809 has 12 divisors (see below), whose sum is σ = 43615488. Its totient is φ = 30126600.

The previous prime is 36320797. The next prime is 36320873. The reversal of 36320809 is 90802363.

It is a happy number.

It is not a de Polignac number, because 36320809 - 2¹¹ = 36318761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (36320309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10437 + ... + 13474.

It is an arithmetic number, because the mean of its divisors is an integer number (3634624).

Almost surely, 2^36320809 is an apocalyptic number.

It is an amenable number.

36320809 is a deficient number, since it is larger than the sum of its proper divisors (7294679).

36320809 is a wasteful number, since it uses less digits than its factorization.

36320809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23956 (or 23949 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 36320809 is about 6026.6747879739. The cubic root of 36320809 is about 331.1706479439.

The spelling of 36320809 in words is "thirty-six million, three hundred twenty thousand, eight hundred nine".