907691 has 2 divisors, whose sum is σ = 907692. Its totient is φ = 907690.

The previous prime is 907667. The next prime is 907693. The reversal of 907691 is 196709.

It is a strong prime.

It is an emirp because it is prime and its reverse (196709) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-907691 is a prime.

It is a Sophie Germain prime.

Together with 907693, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 907691.

It is not a weakly prime, because it can be changed into another prime (907693) 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, 453845 + 453846.

It is an arithmetic number, because the mean of its divisors is an integer number (453846).

2⁹⁰⁷⁶⁹¹ is an apocalyptic number.

907691 is a deficient number, since it is larger than the sum of its proper divisors (1).

907691 is an equidigital number, since it uses as much as digits as its factorization.

907691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 907691 is about 952.7281878899. The cubic root of 907691 is about 96.8231801942.

The spelling of 907691 in words is "nine hundred seven thousand, six hundred ninety-one".