34427221 has 4 divisors (see below), whose sum is σ = 36239200. Its totient is φ = 32615244.

The previous prime is 34427209. The next prime is 34427231. The reversal of 34427221 is 12272443.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12272443 = 241 ⋅50923.

It is a cyclic number.

It is not a de Polignac number, because 34427221 - 2⁵ = 34427189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34427231) 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, 905961 + ... + 905998.

It is an arithmetic number, because the mean of its divisors is an integer number (9059800).

Almost surely, 2^34427221 is an apocalyptic number.

It is an amenable number.

34427221 is a deficient number, since it is larger than the sum of its proper divisors (1811979).

34427221 is a wasteful number, since it uses less digits than its factorization.

34427221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811978.

The product of its digits is 2688, while the sum is 25.

The square root of 34427221 is about 5867.4714315453. The cubic root of 34427221 is about 325.3124285545.

Adding to 34427221 its reverse (12272443), we get a palindrome (46699664).

The spelling of 34427221 in words is "thirty-four million, four hundred twenty-seven thousand, two hundred twenty-one".