34646021 has 2 divisors, whose sum is σ = 34646022. Its totient is φ = 34646020.

The previous prime is 34645997. The next prime is 34646041. The reversal of 34646021 is 12064643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 7761796 = 5185^2 + 2786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34646021 is a prime.

It is a super-2 number, since 2×34646021² = 2400693542264882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34646041) 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 as a sum of consecutive naturals, namely, 17323010 + 17323011.

It is an arithmetic number, because the mean of its divisors is an integer number (17323011).

Almost surely, 2^34646021 is an apocalyptic number.

It is an amenable number.

34646021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34646021 is an equidigital number, since it uses as much as digits as its factorization.

34646021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 34646021 is about 5886.0870703720. The cubic root of 34646021 is about 326.0001411419. Note that the first 3 decimals are identical.

The spelling of 34646021 in words is "thirty-four million, six hundred forty-six thousand, twenty-one".