523908 has 108 divisors (see below), whose sum is σ = 1742832. Its totient is φ = 136080.

The previous prime is 523907. The next prime is 523927. The reversal of 523908 is 809325.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

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 35 ways as a sum of consecutive naturals, for example, 47623 + ... + 47633.

2⁵²³⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871416).

523908 is an abundant number, since it is smaller than the sum of its proper divisors (1218924).

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

523908 is a wasteful number, since it uses less digits than its factorization.

523908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 523908 is about 723.8148934638. The cubic root of 523908 is about 80.6154612836.

It can be divided in two parts, 523 and 908, that added together give a triangular number (1431 = T₅₃).

The spelling of 523908 in words is "five hundred twenty-three thousand, nine hundred eight".