34961221 has 2 divisors, whose sum is σ = 34961222. Its totient is φ = 34961220.

The previous prime is 34961209. The next prime is 34961237. The reversal of 34961221 is 12216943.

34961221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34680321 + 280900 = 5889^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 34961221 - 2⁷ = 34961093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34961221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34961261) 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 as a sum of consecutive naturals, namely, 17480610 + 17480611.

It is an arithmetic number, because the mean of its divisors is an integer number (17480611).

Almost surely, 2^34961221 is an apocalyptic number.

It is an amenable number.

34961221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34961221 is an equidigital number, since it uses as much as digits as its factorization.

34961221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 34961221 is about 5912.8014510890. The cubic root of 34961221 is about 326.9857781069.

The spelling of 34961221 in words is "thirty-four million, nine hundred sixty-one thousand, two hundred twenty-one".