10689911 has 2 divisors, whose sum is σ = 10689912. Its totient is φ = 10689910.

The previous prime is 10689907. The next prime is 10689961. The reversal of 10689911 is 11998601.

It is a weak prime.

It is an emirp because it is prime and its reverse (11998601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10689911 - 2² = 10689907 is a prime.

It is a super-2 number, since 2×10689911² = 228548394375842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10689961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5344955 + 5344956.

It is an arithmetic number, because the mean of its divisors is an integer number (5344956).

Almost surely, 2^10689911 is an apocalyptic number.

10689911 is a deficient number, since it is larger than the sum of its proper divisors (1).

10689911 is an equidigital number, since it uses as much as digits as its factorization.

10689911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 10689911 is about 3269.5429344176. The cubic root of 10689911 is about 220.2882653724.

The spelling of 10689911 in words is "ten million, six hundred eighty-nine thousand, nine hundred eleven".