34226721 has 6 divisors (see below), whose sum is σ = 49438610. Its totient is φ = 22817808.

The previous prime is 34226719. The next prime is 34226723. The reversal of 34226721 is 12762243.

It is an interprime number because it is at equal distance from previous prime (34226719) and next prime (34226723).

It can be written as a sum of positive squares in only one way, i.e., 33350625 + 876096 = 5775^2 + 936^2 .

It is not a de Polignac number, because 34226721 - 2¹ = 34226719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34226723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1901476 + ... + 1901493.

Almost surely, 2^34226721 is an apocalyptic number.

It is an amenable number.

34226721 is a deficient number, since it is larger than the sum of its proper divisors (15211889).

34226721 is a wasteful number, since it uses less digits than its factorization.

34226721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802975 (or 3802972 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 34226721 is about 5850.3607581071. The cubic root of 34226721 is about 324.6796717568.

Adding to 34226721 its reverse (12762243), we get a palindrome (46988964).

The spelling of 34226721 in words is "thirty-four million, two hundred twenty-six thousand, seven hundred twenty-one".