693424 has 20 divisors (see below), whose sum is σ = 1414840. Its totient is φ = 328320.

The previous prime is 693421. The next prime is 693431. The reversal of 693424 is 424396.

It is a junction number, because it is equal to n+sod(n) for n = 693392 and 693401.

It is not an unprimeable number, because it can be changed into a prime (693421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837 + ... + 1444.

It is an arithmetic number, because the mean of its divisors is an integer number (70742).

2⁶⁹³⁴²⁴ is an apocalyptic number.

It is an amenable number.

693424 is an abundant number, since it is smaller than the sum of its proper divisors (721416).

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

693424 is a wasteful number, since it uses less digits than its factorization.

693424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2302 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 693424 is about 832.7208415790. The cubic root of 693424 is about 88.5114841407.

Subtracting from 693424 its sum of digits (28), we obtain a palindrome (693396).

The spelling of 693424 in words is "six hundred ninety-three thousand, four hundred twenty-four".