34294781 has 2 divisors, whose sum is σ = 34294782. Its totient is φ = 34294780.

The previous prime is 34294759. The next prime is 34294783. The reversal of 34294781 is 18749243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27994681 + 6300100 = 5291^2 + 2510^2 .

It is an emirp because it is prime and its reverse (18749243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34294781 - 2⁶ = 34294717 is a prime.

It is a super-2 number, since 2×34294781² = 2352264007675922, which contains 22 as substring.

Together with 34294783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34294783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17147390 + 17147391.

It is an arithmetic number, because the mean of its divisors is an integer number (17147391).

Almost surely, 2^34294781 is an apocalyptic number.

It is an amenable number.

34294781 is a deficient number, since it is larger than the sum of its proper divisors (1).

34294781 is an equidigital number, since it uses as much as digits as its factorization.

34294781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 34294781 is about 5856.1746046374. The cubic root of 34294781 is about 324.8947382979.

The spelling of 34294781 in words is "thirty-four million, two hundred ninety-four thousand, seven hundred eighty-one".