653466 has 16 divisors (see below), whose sum is σ = 1425888. Its totient is φ = 198000.

The previous prime is 653461. The next prime is 653473. The reversal of 653466 is 664356.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (653461) by changing a digit.

653466 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 4885 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (89118).

2⁶⁵³⁴⁶⁶ is an apocalyptic number.

653466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

653466 is an abundant number, since it is smaller than the sum of its proper divisors (772422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653466 is a wasteful number, since it uses less digits than its factorization.

653466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9917.

The product of its digits is 12960, while the sum is 30.

The square root of 653466 is about 808.3724389166. The cubic root of 653466 is about 86.7776061210. Note that the first 3 decimals are identical.

The spelling of 653466 in words is "six hundred fifty-three thousand, four hundred sixty-six".