655106873 has 2 divisors, whose sum is σ = 655106874. Its totient is φ = 655106872.

The previous prime is 655106869. The next prime is 655106899. The reversal of 655106873 is 378601556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341214784 + 313892089 = 18472^2 + 17717^2 .

It is a cyclic number.

It is not a de Polignac number, because 655106873 - 2² = 655106869 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655106873.

It is not a weakly prime, because it can be changed into another prime (655106813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327553436 + 327553437.

It is an arithmetic number, because the mean of its divisors is an integer number (327553437).

Almost surely, 2^655106873 is an apocalyptic number.

It is an amenable number.

655106873 is a deficient number, since it is larger than the sum of its proper divisors (1).

655106873 is an equidigital number, since it uses as much as digits as its factorization.

655106873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 655106873 is about 25595.0556358059. The cubic root of 655106873 is about 868.5017914659.

The spelling of 655106873 in words is "six hundred fifty-five million, one hundred six thousand, eight hundred seventy-three".