872578 has 8 divisors (see below), whose sum is σ = 1495872. Its totient is φ = 373956.

The previous prime is 872567. The next prime is 872587. The reversal of 872578 is 875278.

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

It is a super-2 number, since 2×872578² = 1522784732168, which contains 22 as substring.

It is an unprimeable number.

872578 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31150 + ... + 31177.

It is an arithmetic number, because the mean of its divisors is an integer number (186984).

2⁸⁷²⁵⁷⁸ is an apocalyptic number.

872578 is a deficient number, since it is larger than the sum of its proper divisors (623294).

872578 is a wasteful number, since it uses less digits than its factorization.

872578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62336.

The product of its digits is 31360, while the sum is 37.

The square root of 872578 is about 934.1188361231. The cubic root of 872578 is about 95.5582276960.

The spelling of 872578 in words is "eight hundred seventy-two thousand, five hundred seventy-eight".