36636321 has 4 divisors (see below), whose sum is σ = 48848432. Its totient is φ = 24424212.

The previous prime is 36636307. The next prime is 36636323. The reversal of 36636321 is 12363663.

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 not a de Polignac number, because 36636321 - 2⁵ = 36636289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36636323) 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 3 ways as a sum of consecutive naturals, for example, 6106051 + ... + 6106056.

It is an arithmetic number, because the mean of its divisors is an integer number (12212108).

Almost surely, 2^36636321 is an apocalyptic number.

It is an amenable number.

36636321 is a deficient number, since it is larger than the sum of its proper divisors (12212111).

36636321 is a wasteful number, since it uses less digits than its factorization.

36636321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212110.

The product of its digits is 11664, while the sum is 30.

The square root of 36636321 is about 6052.7944785859. The cubic root of 36636321 is about 332.1268234931.

Adding to 36636321 its reverse (12363663), we get a palindrome (48999984).

The spelling of 36636321 in words is "thirty-six million, six hundred thirty-six thousand, three hundred twenty-one".