653934 has 16 divisors (see below), whose sum is σ = 1326672. Its totient is φ = 214848.

The previous prime is 653929. The next prime is 653941. The reversal of 653934 is 439356.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653934.

It is an unprimeable number.

653934 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (82917).

2⁶⁵³⁹³⁴ is an apocalyptic number.

653934 is an abundant number, since it is smaller than the sum of its proper divisors (672738).

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

653934 is a wasteful number, since it uses less digits than its factorization.

653934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its digits is 9720, while the sum is 30.

The square root of 653934 is about 808.6618576389. The cubic root of 653934 is about 86.7983173380.

The spelling of 653934 in words is "six hundred fifty-three thousand, nine hundred thirty-four".