10684909 has 2 divisors, whose sum is σ = 10684910. Its totient is φ = 10684908.

The previous prime is 10684889. The next prime is 10684951. The reversal of 10684909 is 90948601.

10684909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10099684 + 585225 = 3178^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10684909 - 2⁷ = 10684781 is a prime.

It is a super-2 number, since 2×10684909² = 228334560676562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10684409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5342454 + 5342455.

It is an arithmetic number, because the mean of its divisors is an integer number (5342455).

Almost surely, 2^10684909 is an apocalyptic number.

It is an amenable number.

10684909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10684909 is an equidigital number, since it uses as much as digits as its factorization.

10684909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 10684909 is about 3268.7779061906. Note that the first 3 decimals coincide. The cubic root of 10684909 is about 220.2539010760.

The spelling of 10684909 in words is "ten million, six hundred eighty-four thousand, nine hundred nine".