34957221 has 16 divisors (see below), whose sum is σ = 50670144. Its totient is φ = 21308544.

The previous prime is 34957189. The next prime is 34957229. The reversal of 34957221 is 12275943.

34957221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34957221 - 2⁵ = 34957189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34957229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16 + ... + 8361.

It is an arithmetic number, because the mean of its divisors is an integer number (3166884).

Almost surely, 2^34957221 is an apocalyptic number.

It is an amenable number.

34957221 is a deficient number, since it is larger than the sum of its proper divisors (15712923).

34957221 is a wasteful number, since it uses less digits than its factorization.

34957221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500.

The product of its digits is 15120, while the sum is 33.

The square root of 34957221 is about 5912.4631922744. The cubic root of 34957221 is about 326.9733072134.

The spelling of 34957221 in words is "thirty-four million, nine hundred fifty-seven thousand, two hundred twenty-one".