872612 has 24 divisors (see below), whose sum is σ = 1671096. Its totient is φ = 396288.

The previous prime is 872611. The next prime is 872621. The reversal of 872612 is 216278.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 732736 = 374^2 + 856^2 .

It is a super-2 number, since 2×872612² = 1522903405088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (872611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958 + ... + 5130.

It is an arithmetic number, because the mean of its divisors is an integer number (69629).

2⁸⁷²⁶¹² is an apocalyptic number.

It is an amenable number.

872612 is a deficient number, since it is larger than the sum of its proper divisors (798484).

872612 is a wasteful number, since it uses less digits than its factorization.

872612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 872612 is about 934.1370349151. The cubic root of 872612 is about 95.5594688220.

The spelling of 872612 in words is "eight hundred seventy-two thousand, six hundred twelve".