653536 has 24 divisors (see below), whose sum is σ = 1386504. Its totient is φ = 301440.

The previous prime is 653519. The next prime is 653537. The reversal of 653536 is 635356.

653536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653537) by changing a digit.

653536 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, 370 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (57771).

2⁶⁵³⁵³⁶ is an apocalyptic number.

It is an amenable number.

653536 is an abundant number, since it is smaller than the sum of its proper divisors (732968).

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

653536 is a wasteful number, since it uses less digits than its factorization.

653536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594 (or 1586 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 653536 is about 808.4157346316. The cubic root of 653536 is about 86.7807045814.

The spelling of 653536 in words is "six hundred fifty-three thousand, five hundred thirty-six".