285772 has 6 divisors (see below), whose sum is σ = 500108. Its totient is φ = 142884.

The previous prime is 285767. The next prime is 285773. The reversal of 285772 is 277582.

It is not an unprimeable number, because it can be changed into a prime (285773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35718 + ... + 35725.

2²⁸⁵⁷⁷² is an apocalyptic number.

It is an amenable number.

285772 is a deficient number, since it is larger than the sum of its proper divisors (214336).

285772 is a wasteful number, since it uses less digits than its factorization.

285772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71447 (or 71445 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 285772 is about 534.5764678697. The cubic root of 285772 is about 65.8678101029.

The spelling of 285772 in words is "two hundred eighty-five thousand, seven hundred seventy-two".