36108921 has 4 divisors (see below), whose sum is σ = 48145232. Its totient is φ = 24072612.

The previous prime is 36108881. The next prime is 36108931. The reversal of 36108921 is 12980163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-36108921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36108931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6018151 + ... + 6018156.

It is an arithmetic number, because the mean of its divisors is an integer number (12036308).

Almost surely, 2^36108921 is an apocalyptic number.

It is an amenable number.

36108921 is a deficient number, since it is larger than the sum of its proper divisors (12036311).

36108921 is a wasteful number, since it uses less digits than its factorization.

36108921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12036310.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 36108921 is about 6009.0698947508. The cubic root of 36108921 is about 330.5253981396.

The spelling of 36108921 in words is "thirty-six million, one hundred eight thousand, nine hundred twenty-one".