805572 has 24 divisors (see below), whose sum is σ = 2088800. Its totient is φ = 268488.

The previous prime is 805559. The next prime is 805573. The reversal of 805572 is 275508.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (805573) by changing a digit.

805572 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 7 ways as a sum of consecutive naturals, for example, 3622 + ... + 3837.

2⁸⁰⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

805572 is an abundant number, since it is smaller than the sum of its proper divisors (1283228).

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

805572 is a wasteful number, since it uses less digits than its factorization.

805572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472 (or 7464 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 805572 is about 897.5366287790. The cubic root of 805572 is about 93.0468026651.

The spelling of 805572 in words is "eight hundred five thousand, five hundred seventy-two".