34434781 has 2 divisors, whose sum is σ = 34434782. Its totient is φ = 34434780.

The previous prime is 34434779. The next prime is 34434863. The reversal of 34434781 is 18743443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18705625 + 15729156 = 4325^2 + 3966^2 .

It is a cyclic number.

It is not a de Polignac number, because 34434781 - 2¹ = 34434779 is a prime.

It is a super-2 number, since 2×34434781² = 2371508285035922, which contains 22 as substring.

Together with 34434779, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34432781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17217390 + 17217391.

It is an arithmetic number, because the mean of its divisors is an integer number (17217391).

Almost surely, 2^34434781 is an apocalyptic number.

It is an amenable number.

34434781 is a deficient number, since it is larger than the sum of its proper divisors (1).

34434781 is an equidigital number, since it uses as much as digits as its factorization.

34434781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 34434781 is about 5868.1156259910. The cubic root of 34434781 is about 325.3362389956.

The spelling of 34434781 in words is "thirty-four million, four hundred thirty-four thousand, seven hundred eighty-one".