393534 has 12 divisors (see below), whose sum is σ = 852696. Its totient is φ = 131172.

The previous prime is 393521. The next prime is 393539. The reversal of 393534 is 435393.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 393498 and 393507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10914 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (71058).

2³⁹³⁵³⁴ is an apocalyptic number.

393534 is an abundant number, since it is smaller than the sum of its proper divisors (459162).

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

393534 is a wasteful number, since it uses less digits than its factorization.

393534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871 (or 21868 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 393534 is about 627.3228833703. The cubic root of 393534 is about 73.2814555037.

It can be divided in two parts, 3935 and 34, that added together give a square (3969 = 63²).

The spelling of 393534 in words is "three hundred ninety-three thousand, five hundred thirty-four".