10243691 has 2 divisors, whose sum is σ = 10243692. Its totient is φ = 10243690.

The previous prime is 10243663. The next prime is 10243703. The reversal of 10243691 is 19634201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10243691 - 2¹⁴ = 10227307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10243691.

It is not a weakly prime, because it can be changed into another prime (10243621) 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, 5121845 + 5121846.

It is an arithmetic number, because the mean of its divisors is an integer number (5121846).

Almost surely, 2^10243691 is an apocalyptic number.

10243691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10243691 is an equidigital number, since it uses as much as digits as its factorization.

10243691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 10243691 is about 3200.5766667899. The cubic root of 10243691 is about 217.1794971190.

Adding to 10243691 its reverse (19634201), we get a palindrome (29877892).

The spelling of 10243691 in words is "ten million, two hundred forty-three thousand, six hundred ninety-one".