872380 has 24 divisors (see below), whose sum is σ = 1868832. Its totient is φ = 341952.

The previous prime is 872369. The next prime is 872381. The reversal of 872380 is 83278.

It is a happy number.

It is a super-2 number, since 2×872380² = 1522093728800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (77868).

2⁸⁷²³⁸⁰ is an apocalyptic number.

It is an amenable number.

872380 is an abundant number, since it is smaller than the sum of its proper divisors (996452).

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

872380 is a wasteful number, since it uses less digits than its factorization.

872380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 872380 is about 934.0128478774. The cubic root of 872380 is about 95.5509993220.

The spelling of 872380 in words is "eight hundred seventy-two thousand, three hundred eighty".