653893 has 2 divisors, whose sum is σ = 653894. Its totient is φ = 653892.

The previous prime is 653881. The next prime is 653899. The reversal of 653893 is 398356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613089 + 40804 = 783^2 + 202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326946 + 326947.

It is an arithmetic number, because the mean of its divisors is an integer number (326947).

2⁶⁵³⁸⁹³ is an apocalyptic number.

It is an amenable number.

653893 is a deficient number, since it is larger than the sum of its proper divisors (1).

653893 is an equidigital number, since it uses as much as digits as its factorization.

653893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 653893 is about 808.6365067198. The cubic root of 653893 is about 86.7965032888.

The spelling of 653893 in words is "six hundred fifty-three thousand, eight hundred ninety-three".