523971 has 12 divisors (see below), whose sum is σ = 865072. Its totient is φ = 299376.

The previous prime is 523969. The next prime is 523987. The reversal of 523971 is 179325.

It is not a de Polignac number, because 523971 - 2¹ = 523969 is a prime.

It is a Duffinian number.

523971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (523571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4096 + ... + 4221.

2⁵²³⁹⁷¹ is an apocalyptic number.

523971 is a deficient number, since it is larger than the sum of its proper divisors (341101).

523971 is a wasteful number, since it uses less digits than its factorization.

523971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330 (or 8327 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 523971 is about 723.8584115696. The cubic root of 523971 is about 80.6186924938.

The spelling of 523971 in words is "five hundred twenty-three thousand, nine hundred seventy-one".