872118 has 24 divisors (see below), whose sum is σ = 2035488. Its totient is φ = 268272.

The previous prime is 872107. The next prime is 872129. The reversal of 872118 is 811278.

It is an interprime number because it is at equal distance from previous prime (872107) and next prime (872129).

It is a junction number, because it is equal to n+sod(n) for n = 872091 and 872100.

It is a congruent number.

It is an unprimeable number.

872118 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 11 ways as a sum of consecutive naturals, for example, 1630 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (84812).

2⁸⁷²¹¹⁸ is an apocalyptic number.

872118 is an abundant number, since it is smaller than the sum of its proper divisors (1163370).

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

872118 is a wasteful number, since it uses less digits than its factorization.

872118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3745 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 872118 is about 933.8725823152. The cubic root of 872118 is about 95.5414328226.

It can be divided in two parts, 872 and 118, that added together give a triangular number (990 = T₄₄).

The spelling of 872118 in words is "eight hundred seventy-two thousand, one hundred eighteen".