653383 has 4 divisors (see below), whose sum is σ = 671080. Its totient is φ = 635688.

The previous prime is 653363. The next prime is 653431. The reversal of 653383 is 383356.

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 653383 - 2⁹ = 652871 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8793 + ... + 8866.

It is an arithmetic number, because the mean of its divisors is an integer number (167770).

2⁶⁵³³⁸³ is an apocalyptic number.

653383 is a deficient number, since it is larger than the sum of its proper divisors (17697).

653383 is a wasteful number, since it uses less digits than its factorization.

653383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17696.

The product of its digits is 6480, while the sum is 28.

The square root of 653383 is about 808.3210995638. The cubic root of 653383 is about 86.7739319456.

It can be divided in two parts, 65338 and 3, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 653383 in words is "six hundred fifty-three thousand, three hundred eighty-three".