34702021 has 2 divisors, whose sum is σ = 34702022. Its totient is φ = 34702020.

The previous prime is 34701991. The next prime is 34702033. The reversal of 34702021 is 12020743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 1512900 = 5761^2 + 1230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34702021 is a prime.

It is a super-2 number, since 2×34702021² = 2408460522968882, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34702021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34702081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17351010 + 17351011.

It is an arithmetic number, because the mean of its divisors is an integer number (17351011).

Almost surely, 2^34702021 is an apocalyptic number.

It is an amenable number.

34702021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34702021 is an equidigital number, since it uses as much as digits as its factorization.

34702021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 34702021 is about 5890.8421299505. The cubic root of 34702021 is about 326.1756897348.

Adding to 34702021 its reverse (12020743), we get a palindrome (46722764).

The spelling of 34702021 in words is "thirty-four million, seven hundred two thousand, twenty-one".