36221969 has 4 divisors (see below), whose sum is σ = 41396544. Its totient is φ = 31047396.

The previous prime is 36221963. The next prime is 36221989. The reversal of 36221969 is 96912263.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36221969 is a prime.

It is a super-2 number, since 2×36221969² = 2624062076473922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36221963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2587277 + ... + 2587290.

It is an arithmetic number, because the mean of its divisors is an integer number (10349136).

Almost surely, 2^36221969 is an apocalyptic number.

It is an amenable number.

36221969 is a deficient number, since it is larger than the sum of its proper divisors (5174575).

36221969 is an equidigital number, since it uses as much as digits as its factorization.

36221969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174574.

The product of its digits is 34992, while the sum is 38.

The square root of 36221969 is about 6018.4689913632. The cubic root of 36221969 is about 330.8699695836.

The spelling of 36221969 in words is "thirty-six million, two hundred twenty-one thousand, nine hundred sixty-nine".