653394 has 32 divisors (see below), whose sum is σ = 1529856. Its totient is φ = 182160.

The previous prime is 653363. The next prime is 653431. The reversal of 653394 is 493356.

It is a happy number.

653394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653394.

It is an unprimeable number.

653394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1809 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (47808).

2⁶⁵³³⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764928).

653394 is an abundant number, since it is smaller than the sum of its proper divisors (876462).

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

653394 is a wasteful number, since it uses less digits than its factorization.

653394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

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

The square root of 653394 is about 808.3279037618. The cubic root of 653394 is about 86.7744189024.

The spelling of 653394 in words is "six hundred fifty-three thousand, three hundred ninety-four".