653956441 has 2 divisors, whose sum is σ = 653956442. Its totient is φ = 653956440.

The previous prime is 653956423. The next prime is 653956451. The reversal of 653956441 is 144659356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345216400 + 308740041 = 18580^2 + 17571^2 .

It is a cyclic number.

It is not a de Polignac number, because 653956441 - 2⁷ = 653956313 is a prime.

It is not a weakly prime, because it can be changed into another prime (653956451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326978220 + 326978221.

It is an arithmetic number, because the mean of its divisors is an integer number (326978221).

Almost surely, 2^653956441 is an apocalyptic number.

It is an amenable number.

653956441 is a deficient number, since it is larger than the sum of its proper divisors (1).

653956441 is an equidigital number, since it uses as much as digits as its factorization.

653956441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 653956441 is about 25572.5720450642. The cubic root of 653956441 is about 867.9931021028.

The spelling of 653956441 in words is "six hundred fifty-three million, nine hundred fifty-six thousand, four hundred forty-one".