34220257 has 2 divisors, whose sum is σ = 34220258. Its totient is φ = 34220256.

The previous prime is 34220237. The next prime is 34220267. The reversal of 34220257 is 75202243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29419776 + 4800481 = 5424^2 + 2191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34220257 is a prime.

It is not a weakly prime, because it can be changed into another prime (34220237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110128 + 17110129.

It is an arithmetic number, because the mean of its divisors is an integer number (17110129).

Almost surely, 2^34220257 is an apocalyptic number.

It is an amenable number.

34220257 is a deficient number, since it is larger than the sum of its proper divisors (1).

34220257 is an equidigital number, since it uses as much as digits as its factorization.

34220257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 34220257 is about 5849.8082874569. The cubic root of 34220257 is about 324.6592309874.

The spelling of 34220257 in words is "thirty-four million, two hundred twenty thousand, two hundred fifty-seven".