633456673 has 2 divisors, whose sum is σ = 633456674. Its totient is φ = 633456672.

The previous prime is 633456623. The next prime is 633456709. The reversal of 633456673 is 376654336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 632623104 + 833569 = 25152^2 + 913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-633456673 is a prime.

It is not a weakly prime, because it can be changed into another prime (633456623) 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, 316728336 + 316728337.

It is an arithmetic number, because the mean of its divisors is an integer number (316728337).

Almost surely, 2^633456673 is an apocalyptic number.

It is an amenable number.

633456673 is a deficient number, since it is larger than the sum of its proper divisors (1).

633456673 is an equidigital number, since it uses as much as digits as its factorization.

633456673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 43.

The square root of 633456673 is about 25168.5651756313. The cubic root of 633456673 is about 858.8268992734.

The spelling of 633456673 in words is "six hundred thirty-three million, four hundred fifty-six thousand, six hundred seventy-three".