653683 has 8 divisors (see below), whose sum is σ = 691488. Its totient is φ = 616704.

The previous prime is 653659. The next prime is 653687. The reversal of 653683 is 386356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 653683 - 2⁵ = 653651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085 + ... + 2377.

It is an arithmetic number, because the mean of its divisors is an integer number (86436).

2⁶⁵³⁶⁸³ is an apocalyptic number.

653683 is a deficient number, since it is larger than the sum of its proper divisors (37805).

653683 is a wasteful number, since it uses less digits than its factorization.

653683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413.

The product of its digits is 12960, while the sum is 31.

The square root of 653683 is about 808.5066480865. The cubic root of 653683 is about 86.7872106281.

The spelling of 653683 in words is "six hundred fifty-three thousand, six hundred eighty-three".