71572 has 12 divisors (see below), whose sum is σ = 129780. Its totient is φ = 34496.

The previous prime is 71569. The next prime is 71593. The reversal of 71572 is 27517.

It can be written as a sum of positive squares in 2 ways, for example, as 15876 + 55696 = 126^2 + 236^2 .

It is a magnanimous number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 424.

It is an arithmetic number, because the mean of its divisors is an integer number (10815).

2⁷¹⁵⁷² is an apocalyptic number.

It is an amenable number.

71572 is a deficient number, since it is larger than the sum of its proper divisors (58208).

71572 is a wasteful number, since it uses less digits than its factorization.

71572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its digits is 490, while the sum is 22.

The square root of 71572 is about 267.5294376326. The cubic root of 71572 is about 41.5190796286.

It can be divided in two parts, 715 and 72, that added together give a palindrome (787).

The spelling of 71572 in words is "seventy-one thousand, five hundred seventy-two".