653459 has 4 divisors (see below), whose sum is σ = 661416. Its totient is φ = 645504.

The previous prime is 653431. The next prime is 653461. The reversal of 653459 is 954356.

It is a happy number.

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 653459 - 2⁸ = 653203 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653459.

It is not an unprimeable number, because it can be changed into a prime (653659) 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, 3854 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (165354).

2⁶⁵³⁴⁵⁹ is an apocalyptic number.

653459 is a deficient number, since it is larger than the sum of its proper divisors (7957).

653459 is an equidigital number, since it uses as much as digits as its factorization.

653459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7956.

The product of its digits is 16200, while the sum is 32.

The square root of 653459 is about 808.3681092176. The cubic root of 653459 is about 86.7772962628. Note that the first 3 decimals are identical.

The spelling of 653459 in words is "six hundred fifty-three thousand, four hundred fifty-nine".