36237921 has 16 divisors (see below), whose sum is σ = 51032640. Its totient is φ = 22809600.

The previous prime is 36237899. The next prime is 36237941. The reversal of 36237921 is 12973263.

It is a happy number.

It is not a de Polignac number, because 36237921 - 2⁵ = 36237889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36237941) 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, 19221 + ... + 21021.

It is an arithmetic number, because the mean of its divisors is an integer number (3189540).

Almost surely, 2^36237921 is an apocalyptic number.

It is an amenable number.

36237921 is a deficient number, since it is larger than the sum of its proper divisors (14794719).

36237921 is a wasteful number, since it uses less digits than its factorization.

36237921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its digits is 13608, while the sum is 33.

The square root of 36237921 is about 6019.7940994689. The cubic root of 36237921 is about 330.9185336943.

It can be divided in two parts, 362 and 37921, that added together give a palindrome (38283).

The spelling of 36237921 in words is "thirty-six million, two hundred thirty-seven thousand, nine hundred twenty-one".