10687843 has 4 divisors (see below), whose sum is σ = 10838448. Its totient is φ = 10537240.

The previous prime is 10687837. The next prime is 10687867. The reversal of 10687843 is 34878601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10687843 - 2⁵ = 10687811 is a prime.

It is a super-2 number, since 2×10687843² = 228459975985298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10687813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75196 + ... + 75337.

It is an arithmetic number, because the mean of its divisors is an integer number (2709612).

Almost surely, 2^10687843 is an apocalyptic number.

10687843 is a deficient number, since it is larger than the sum of its proper divisors (150605).

10687843 is an equidigital number, since it uses as much as digits as its factorization.

10687843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150604.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 10687843 is about 3269.2266669658. The cubic root of 10687843 is about 220.2740592825.

It can be divided in two parts, 1068 and 7843, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 10687843 in words is "ten million, six hundred eighty-seven thousand, eight hundred forty-three".