36321993 has 24 divisors (see below), whose sum is σ = 55087200. Its totient is φ = 23646600.

The previous prime is 36321983. The next prime is 36321997. The reversal of 36321993 is 39912363.

It is a happy number.

36321993 is a `hidden beast` number, since 3 + 632 + 19 + 9 + 3 = 666.

It is not a de Polignac number, because 36321993 - 2¹⁰ = 36320969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36321997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240468 + ... + 240618.

It is an arithmetic number, because the mean of its divisors is an integer number (2295300).

Almost surely, 2^36321993 is an apocalyptic number.

It is an amenable number.

36321993 is a deficient number, since it is larger than the sum of its proper divisors (18765207).

36321993 is an equidigital number, since it uses as much as digits as its factorization.

36321993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 213 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 36321993 is about 6026.7730171295. The cubic root of 36321993 is about 331.1742464485.

It can be divided in two parts, 3632 and 1993, that added together give a square (5625 = 75²).

The spelling of 36321993 in words is "thirty-six million, three hundred twenty-one thousand, nine hundred ninety-three".