34077721 has 2 divisors, whose sum is σ = 34077722. Its totient is φ = 34077720.

The previous prime is 34077691. The next prime is 34077731. The reversal of 34077721 is 12777043.

34077721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21261321 + 12816400 = 4611^2 + 3580^2 .

It is an emirp because it is prime and its reverse (12777043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34077721 is a prime.

It is a super-2 number, since 2×34077721² = 2322582137107682, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34077731) 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, 17038860 + 17038861.

It is an arithmetic number, because the mean of its divisors is an integer number (17038861).

Almost surely, 2^34077721 is an apocalyptic number.

It is an amenable number.

34077721 is a deficient number, since it is larger than the sum of its proper divisors (1).

34077721 is an equidigital number, since it uses as much as digits as its factorization.

34077721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 34077721 is about 5837.6126113335. The cubic root of 34077721 is about 324.2078411656.

The spelling of 34077721 in words is "thirty-four million, seventy-seven thousand, seven hundred twenty-one".