653493 has 8 divisors (see below), whose sum is σ = 885856. Its totient is φ = 428400.

The previous prime is 653491. The next prime is 653501. The reversal of 653493 is 394356.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 653493 - 2¹ = 653491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603 + ... + 1968.

It is an arithmetic number, because the mean of its divisors is an integer number (110732).

2⁶⁵³⁴⁹³ is an apocalyptic number.

It is an amenable number.

653493 is a deficient number, since it is larger than the sum of its proper divisors (232363).

653493 is a wasteful number, since it uses less digits than its factorization.

653493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635.

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

The square root of 653493 is about 808.3891389671. The cubic root of 653493 is about 86.7788012677.

The spelling of 653493 in words is "six hundred fifty-three thousand, four hundred ninety-three".