34687691 has 2 divisors, whose sum is σ = 34687692. Its totient is φ = 34687690.

The previous prime is 34687669. The next prime is 34687717. The reversal of 34687691 is 19678643.

It is a weak prime.

It is an emirp because it is prime and its reverse (19678643) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34687691 is a prime.

It is a super-2 number, since 2×34687691² = 2406471813822962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34677691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17343845 + 17343846.

It is an arithmetic number, because the mean of its divisors is an integer number (17343846).

Almost surely, 2^34687691 is an apocalyptic number.

34687691 is a deficient number, since it is larger than the sum of its proper divisors (1).

34687691 is an equidigital number, since it uses as much as digits as its factorization.

34687691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 34687691 is about 5889.6257096695. The cubic root of 34687691 is about 326.1307860949.

The spelling of 34687691 in words is "thirty-four million, six hundred eighty-seven thousand, six hundred ninety-one".