531872 has 24 divisors (see below), whose sum is σ = 1143072. Its totient is φ = 241600.

The previous prime is 531871. The next prime is 531877. The reversal of 531872 is 278135.

It is not an unprimeable number, because it can be changed into a prime (531871) by changing a digit.

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, 404 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (47628).

2⁵³¹⁸⁷² is an apocalyptic number.

It is an amenable number.

531872 is an abundant number, since it is smaller than the sum of its proper divisors (611200).

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

531872 is a wasteful number, since it uses less digits than its factorization.

531872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1524 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 531872 is about 729.2955505143. The cubic root of 531872 is about 81.0218911517.

The spelling of 531872 in words is "five hundred thirty-one thousand, eight hundred seventy-two".