948907691 has 2 divisors, whose sum is σ = 948907692. Its totient is φ = 948907690.

The previous prime is 948907639. The next prime is 948907697. The reversal of 948907691 is 196709849.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 948907691 - 2⁶ = 948907627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (948907697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474453845 + 474453846.

It is an arithmetic number, because the mean of its divisors is an integer number (474453846).

Almost surely, 2^948907691 is an apocalyptic number.

948907691 is a deficient number, since it is larger than the sum of its proper divisors (1).

948907691 is an equidigital number, since it uses as much as digits as its factorization.

948907691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 948907691 is about 30804.3453265931. The cubic root of 948907691 is about 982.6706589750.

The spelling of 948907691 in words is "nine hundred forty-eight million, nine hundred seven thousand, six hundred ninety-one".