36023221 has 32 divisors (see below), whose sum is σ = 45239040. Its totient is φ = 28283904.

The previous prime is 36023203. The next prime is 36023227. The reversal of 36023221 is 12232063.

It is a cyclic number.

It is not a de Polignac number, because 36023221 - 2⁵ = 36023189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36023227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96391 + ... + 96763.

It is an arithmetic number, because the mean of its divisors is an integer number (1413720).

Almost surely, 2^36023221 is an apocalyptic number.

It is an amenable number.

36023221 is a deficient number, since it is larger than the sum of its proper divisors (9215819).

36023221 is a wasteful number, since it uses less digits than its factorization.

36023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 36023221 is about 6001.9347713883. The cubic root of 36023221 is about 330.2637041236.

Adding to 36023221 its reverse (12232063), we get a palindrome (48255284).

The spelling of 36023221 in words is "thirty-six million, twenty-three thousand, two hundred twenty-one".