10505917 has 16 divisors (see below), whose sum is σ = 11952000. Its totient is φ = 9180864.

The previous prime is 10505909. The next prime is 10505921. The reversal of 10505917 is 71950501.

10505917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10505917 - 2³ = 10505909 is a prime.

It is a super-2 number, since 2×10505917² = 220748584021778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12259 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (747000).

Almost surely, 2^10505917 is an apocalyptic number.

It is an amenable number.

10505917 is a deficient number, since it is larger than the sum of its proper divisors (1446083).

10505917 is a wasteful number, since it uses less digits than its factorization.

10505917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 10505917 is about 3241.2832335358. The cubic root of 10505917 is about 219.0170819922.

The spelling of 10505917 in words is "ten million, five hundred five thousand, nine hundred seventeen".