653453 has 4 divisors (see below), whose sum is σ = 681888. Its totient is φ = 625020.

The previous prime is 653431. The next prime is 653461. The reversal of 653453 is 354356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 653453 - 2⁸ = 653197 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 (653473) 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, 14183 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (170472).

2⁶⁵³⁴⁵³ is an apocalyptic number.

It is an amenable number.

653453 is a deficient number, since it is larger than the sum of its proper divisors (28435).

653453 is a wasteful number, since it uses less digits than its factorization.

653453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28434.

The product of its digits is 5400, while the sum is 26.

The square root of 653453 is about 808.3643980285. The cubic root of 653453 is about 86.7770306683. Note that the first 3 decimals are identical.

The spelling of 653453 in words is "six hundred fifty-three thousand, four hundred fifty-three".