523394 has 4 divisors (see below), whose sum is σ = 785094. Its totient is φ = 261696.

The previous prime is 523387. The next prime is 523403. The reversal of 523394 is 493325.

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., 286225 + 237169 = 535^2 + 487^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130847 + ... + 130850.

2⁵²³³⁹⁴ is an apocalyptic number.

523394 is a deficient number, since it is larger than the sum of its proper divisors (261700).

523394 is a wasteful number, since it uses less digits than its factorization.

523394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261699.

The product of its digits is 3240, while the sum is 26.

The square root of 523394 is about 723.4597431786. The cubic root of 523394 is about 80.5890890291.

The spelling of 523394 in words is "five hundred twenty-three thousand, three hundred ninety-four".