571872 has 96 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 152064.

The previous prime is 571871. The next prime is 571873. The reversal of 571872 is 278175.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (571871) and next prime (571873).

It is a tau number, because it is divible by the number of its divisors (96).

Its product of digits (3920) is a multiple of the sum of its prime factors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (571871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15438 + ... + 15474.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2⁵⁷¹⁸⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 571872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919296).

571872 is an abundant number, since it is smaller than the sum of its proper divisors (1266720).

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

571872 is a wasteful number, since it uses less digits than its factorization.

571872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 72 counting only the distinct ones).

The product of its digits is 3920, while the sum is 30.

The square root of 571872 is about 756.2221895713. Note that the first 3 decimals coincide. The cubic root of 571872 is about 83.0041126331.

The spelling of 571872 in words is "five hundred seventy-one thousand, eight hundred seventy-two".