36597891 has 16 divisors (see below), whose sum is σ = 53510400. Its totient is φ = 22065120.

The previous prime is 36597839. The next prime is 36597917. The reversal of 36597891 is 19879563.

It is not a de Polignac number, because 36597891 - 2¹⁰ = 36596867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36597891.

It is not an unprimeable number, because it can be changed into a prime (36597791) 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 15 ways as a sum of consecutive naturals, for example, 3781 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (3344400).

Almost surely, 2^36597891 is an apocalyptic number.

36597891 is a deficient number, since it is larger than the sum of its proper divisors (16912509).

36597891 is a wasteful number, since it uses less digits than its factorization.

36597891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its digits is 408240, while the sum is 48.

The square root of 36597891 is about 6049.6190789173. The cubic root of 36597891 is about 332.0106537202.

The spelling of 36597891 in words is "thirty-six million, five hundred ninety-seven thousand, eight hundred ninety-one".