10520843 has 4 divisors (see below), whose sum is σ = 10532280. Its totient is φ = 10509408.

The previous prime is 10520837. The next prime is 10520857. The reversal of 10520843 is 34802501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34802501 = 109 ⋅319289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10520843 is a prime.

It is a super-2 number, since 2×10520843² = 221376274861298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10520893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4205 + ... + 6222.

It is an arithmetic number, because the mean of its divisors is an integer number (2633070).

Almost surely, 2^10520843 is an apocalyptic number.

10520843 is a deficient number, since it is larger than the sum of its proper divisors (11437).

10520843 is a wasteful number, since it uses less digits than its factorization.

10520843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11436.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 10520843 is about 3243.5848994592. The cubic root of 10520843 is about 219.1207537945.

The spelling of 10520843 in words is "ten million, five hundred twenty thousand, eight hundred forty-three".