523834 has 4 divisors (see below), whose sum is σ = 785754. Its totient is φ = 261916.

The previous prime is 523829. The next prime is 523847. The reversal of 523834 is 438325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 485809 + 38025 = 697^2 + 195^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 523799 and 523808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130957 + ... + 130960.

2⁵²³⁸³⁴ is an apocalyptic number.

523834 is a deficient number, since it is larger than the sum of its proper divisors (261920).

523834 is a wasteful number, since it uses less digits than its factorization.

523834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261919.

The product of its digits is 2880, while the sum is 25.

The square root of 523834 is about 723.7637736168. The cubic root of 523834 is about 80.6116655631.

The spelling of 523834 in words is "five hundred twenty-three thousand, eight hundred thirty-four".