873869 has 4 divisors (see below), whose sum is σ = 882144. Its totient is φ = 865596.

The previous prime is 873863. The next prime is 873877. The reversal of 873869 is 968378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 873869 - 2¹² = 869773 is a prime.

It is a super-2 number, since 2×873869² = 1527294058322, 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 (873863) 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, 3977 + ... + 4190.

It is an arithmetic number, because the mean of its divisors is an integer number (220536).

2⁸⁷³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

873869 is a deficient number, since it is larger than the sum of its proper divisors (8275).

873869 is a wasteful number, since it uses less digits than its factorization.

873869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274.

The product of its digits is 72576, while the sum is 41.

The square root of 873869 is about 934.8096062835. The cubic root of 873869 is about 95.6053313670.

The spelling of 873869 in words is "eight hundred seventy-three thousand, eight hundred sixty-nine".