872620 has 48 divisors (see below), whose sum is σ = 2193408. Its totient is φ = 285120.

The previous prime is 872611. The next prime is 872621. The reversal of 872620 is 26278.

It is a super-2 number, since 2×872620² = 1522931328800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872621) by changing a digit.

872620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3085 + ... + 3355.

It is an arithmetic number, because the mean of its divisors is an integer number (45696).

2⁸⁷²⁶²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096704).

872620 is an abundant number, since it is smaller than the sum of its proper divisors (1320788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872620 is a wasteful number, since it uses less digits than its factorization.

872620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 872620 is about 934.1413169323. The cubic root of 872620 is about 95.5597608469.

Adding to 872620 its reverse (26278), we get a palindrome (898898).

The spelling of 872620 in words is "eight hundred seventy-two thousand, six hundred twenty".