531983916 has 48 divisors (see below), whose sum is σ = 1380986880. Its totient is φ = 177100560.

The previous prime is 531983911. The next prime is 531983927. The reversal of 531983916 is 619389135.

It is not an unprimeable number, because it can be changed into a prime (531983911) 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, 95685 + ... + 101091.

It is an arithmetic number, because the mean of its divisors is an integer number (28770560).

Almost surely, 2^531983916 is an apocalyptic number.

It is an amenable number.

531983916 is an abundant number, since it is smaller than the sum of its proper divisors (849002964).

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

531983916 is a wasteful number, since it uses less digits than its factorization.

531983916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331 (or 6323 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 531983916 is about 23064.7765217875. The cubic root of 531983916 is about 810.2757360287.

The spelling of 531983916 in words is "five hundred thirty-one million, nine hundred eighty-three thousand, nine hundred sixteen".