10000691 has 2 divisors, whose sum is σ = 10000692. Its totient is φ = 10000690.

The previous prime is 10000687. The next prime is 10000721. The reversal of 10000691 is 19600001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10000691 - 2² = 10000687 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000651) 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, 5000345 + 5000346.

It is an arithmetic number, because the mean of its divisors is an integer number (5000346).

Almost surely, 2^10000691 is an apocalyptic number.

10000691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000691 is an equidigital number, since it uses as much as digits as its factorization.

10000691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10000691 is about 3162.3869149742. The cubic root of 10000691 is about 215.4484312701.

Adding to 10000691 its reverse (19600001), we get a palindrome (29600692).

The spelling of 10000691 in words is "ten million, six hundred ninety-one", and thus it is an aban number.