655632793 has 2 divisors, whose sum is σ = 655632794. Its totient is φ = 655632792.

The previous prime is 655632749. The next prime is 655632811. The reversal of 655632793 is 397236556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 642470409 + 13162384 = 25347^2 + 3628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655632793 is a prime.

It is not a weakly prime, because it can be changed into another prime (655630793) 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, 327816396 + 327816397.

It is an arithmetic number, because the mean of its divisors is an integer number (327816397).

Almost surely, 2^655632793 is an apocalyptic number.

It is an amenable number.

655632793 is a deficient number, since it is larger than the sum of its proper divisors (1).

655632793 is an equidigital number, since it uses as much as digits as its factorization.

655632793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 46.

The square root of 655632793 is about 25605.3274339541. The cubic root of 655632793 is about 868.7341404692.

The spelling of 655632793 in words is "six hundred fifty-five million, six hundred thirty-two thousand, seven hundred ninety-three".