653303 has 4 divisors (see below), whose sum is σ = 746640. Its totient is φ = 559968.

The previous prime is 653281. The next prime is 653311. The reversal of 653303 is 303356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653303 - 2¹⁰ = 652279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653363) 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, 46658 + ... + 46671.

It is an arithmetic number, because the mean of its divisors is an integer number (186660).

2⁶⁵³³⁰³ is an apocalyptic number.

653303 is a deficient number, since it is larger than the sum of its proper divisors (93337).

653303 is an equidigital number, since it uses as much as digits as its factorization.

653303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93336.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 653303 is about 808.2716127639. The cubic root of 653303 is about 86.7703902771.

Adding to 653303 its reverse (303356), we get a palindrome (956659).

The spelling of 653303 in words is "six hundred fifty-three thousand, three hundred three".