653842 has 8 divisors (see below), whose sum is σ = 1120896. Its totient is φ = 280212.

The previous prime is 653831. The next prime is 653879. The reversal of 653842 is 248356.

653842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 6³ + 5⁸ + 8² + 3⁶ + 4³ + 2¹⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 653842.

It is a congruent number.

It is an unprimeable number.

653842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23338 + ... + 23365.

It is an arithmetic number, because the mean of its divisors is an integer number (140112).

2⁶⁵³⁸⁴² is an apocalyptic number.

653842 is a deficient number, since it is larger than the sum of its proper divisors (467054).

653842 is a wasteful number, since it uses less digits than its factorization.

653842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46712.

The product of its digits is 5760, while the sum is 28.

The square root of 653842 is about 808.6049715405. The cubic root of 653842 is about 86.7942466827.

The spelling of 653842 in words is "six hundred fifty-three thousand, eight hundred forty-two".