523906 has 16 divisors (see below), whose sum is σ = 876960. Its totient is φ = 233280.

The previous prime is 523903. The next prime is 523907. The reversal of 523906 is 609325.

It is not an unprimeable number, because it can be changed into a prime (523903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (54810).

2⁵²³⁹⁰⁶ is an apocalyptic number.

523906 is a deficient number, since it is larger than the sum of its proper divisors (353054).

523906 is a wasteful number, since it uses less digits than its factorization.

523906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 523906 is about 723.8135118938. The cubic root of 523906 is about 80.6153587013.

The spelling of 523906 in words is "five hundred twenty-three thousand, nine hundred six".