653345 has 16 divisors (see below), whose sum is σ = 978048. Its totient is φ = 407040.

The previous prime is 653339. The next prime is 653357. The reversal of 653345 is 543356.

It is not a de Polignac number, because 653345 - 2⁶ = 653281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (61128).

2⁶⁵³³⁴⁵ is an apocalyptic number.

It is an amenable number.

653345 is a deficient number, since it is larger than the sum of its proper divisors (324703).

653345 is a wasteful number, since it uses less digits than its factorization.

653345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720.

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

The square root of 653345 is about 808.2975937116. The cubic root of 653345 is about 86.7722496891.

The spelling of 653345 in words is "six hundred fifty-three thousand, three hundred forty-five".