653913 has 32 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 384912.

The previous prime is 653903. The next prime is 653927. The reversal of 653913 is 319356.

653913 is a `hidden beast` number, since 653 + 9 + 1 + 3 = 666.

It is not a de Polignac number, because 653913 - 2⁵ = 653881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (653903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28420 + ... + 28442.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

2⁶⁵³⁹¹³ is an apocalyptic number.

It is an amenable number.

653913 is a deficient number, since it is larger than the sum of its proper divisors (448167).

653913 is an equidigital number, since it uses as much as digits as its factorization.

653913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 39 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 653913 is about 808.6488731211. The cubic root of 653913 is about 86.7973882003.

The spelling of 653913 in words is "six hundred fifty-three thousand, nine hundred thirteen".