10635689 has 2 divisors, whose sum is σ = 10635690. Its totient is φ = 10635688.

The previous prime is 10635679. The next prime is 10635701. The reversal of 10635689 is 98653601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 267289 = 3220^2 + 517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10635689 is a prime.

It is a super-2 number, since 2×10635689² = 226235761009442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10635619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5317844 + 5317845.

It is an arithmetic number, because the mean of its divisors is an integer number (5317845).

Almost surely, 2^10635689 is an apocalyptic number.

It is an amenable number.

10635689 is a deficient number, since it is larger than the sum of its proper divisors (1).

10635689 is an equidigital number, since it uses as much as digits as its factorization.

10635689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 10635689 is about 3261.2404081883. The cubic root of 10635689 is about 219.9151808015.

The spelling of 10635689 in words is "ten million, six hundred thirty-five thousand, six hundred eighty-nine".