653895 has 24 divisors (see below), whose sum is σ = 1237392. Its totient is φ = 316800.

The previous prime is 653893. The next prime is 653899. The reversal of 653895 is 598356.

It is not a de Polignac number, because 653895 - 2¹ = 653893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166 + ... + 1155.

It is an arithmetic number, because the mean of its divisors is an integer number (51558).

2⁶⁵³⁸⁹⁵ is an apocalyptic number.

653895 is a deficient number, since it is larger than the sum of its proper divisors (583497).

653895 is a wasteful number, since it uses less digits than its factorization.

653895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1340 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 653895 is about 808.6377433684. The cubic root of 653895 is about 86.7965917808.

The spelling of 653895 in words is "six hundred fifty-three thousand, eight hundred ninety-five".