872669 has 8 divisors (see below), whose sum is σ = 1014720. Its totient is φ = 734976.

The previous prime is 872659. The next prime is 872671. The reversal of 872669 is 966278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872669 is a prime.

It is a super-2 number, since 2×872669² = 1523102367122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872609) 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 7 ways as a sum of consecutive naturals, for example, 644 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (126840).

2⁸⁷²⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

872669 is a deficient number, since it is larger than the sum of its proper divisors (142051).

872669 is a wasteful number, since it uses less digits than its factorization.

872669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179.

The product of its digits is 36288, while the sum is 38.

The square root of 872669 is about 934.1675438592. The cubic root of 872669 is about 95.5615494608.

The spelling of 872669 in words is "eight hundred seventy-two thousand, six hundred sixty-nine".