36243921 has 16 divisors (see below), whose sum is σ = 55585664. Its totient is φ = 20577024.

The previous prime is 36243913. The next prime is 36243923. The reversal of 36243921 is 12934263.

It is not a de Polignac number, because 36243921 - 2³ = 36243913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36243923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200 + ... + 8793.

It is an arithmetic number, because the mean of its divisors is an integer number (3474104).

Almost surely, 2^36243921 is an apocalyptic number.

It is an amenable number.

36243921 is a deficient number, since it is larger than the sum of its proper divisors (19341743).

36243921 is a wasteful number, since it uses less digits than its factorization.

36243921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160.

The product of its digits is 7776, while the sum is 30.

The square root of 36243921 is about 6020.2924347576. The cubic root of 36243921 is about 330.9367963464.

The spelling of 36243921 in words is "thirty-six million, two hundred forty-three thousand, nine hundred twenty-one".