872969 has 4 divisors (see below), whose sum is σ = 875796. Its totient is φ = 870144.

The previous prime is 872959. The next prime is 872999. The reversal of 872969 is 969278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969278 = 2 ⋅484639.

It can be written as a sum of positive squares in 2 ways, for example, as 506944 + 366025 = 712^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 872969 - 2⁴ = 872953 is a prime.

It is a super-2 number, since 2×872969² = 1524149749922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (872959) 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, 884 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (218949).

2⁸⁷²⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

872969 is a deficient number, since it is larger than the sum of its proper divisors (2827).

872969 is a wasteful number, since it uses less digits than its factorization.

872969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826.

The product of its digits is 54432, while the sum is 41.

The square root of 872969 is about 934.3281008297. The cubic root of 872969 is about 95.5724986982.

The spelling of 872969 in words is "eight hundred seventy-two thousand, nine hundred sixty-nine".