871069 has 4 divisors (see below), whose sum is σ = 899200. Its totient is φ = 842940.

The previous prime is 871061. The next prime is 871103. The reversal of 871069 is 960178.

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 871069 - 2³ = 871061 is a prime.

It is a super-2 number, since 2×871069² = 1517522405522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 28099 = 871069 / (8 + 7 + 1 + 0 + 6 + 9).

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 871069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871061) 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, 14019 + ... + 14080.

It is an arithmetic number, because the mean of its divisors is an integer number (224800).

2⁸⁷¹⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

871069 is a deficient number, since it is larger than the sum of its proper divisors (28131).

871069 is a wasteful number, since it uses less digits than its factorization.

871069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28130.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 871069 is about 933.3107735369. The cubic root of 871069 is about 95.5031111072.

It can be divided in two parts, 87 and 1069, that added together give a square (1156 = 34²).

The spelling of 871069 in words is "eight hundred seventy-one thousand, sixty-nine".