654402673 has 2 divisors, whose sum is σ = 654402674. Its totient is φ = 654402672.

The previous prime is 654402659. The next prime is 654402737. The reversal of 654402673 is 376204456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591802929 + 62599744 = 24327^2 + 7912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654402673 is a prime.

It is not a weakly prime, because it can be changed into another prime (654402613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327201336 + 327201337.

It is an arithmetic number, because the mean of its divisors is an integer number (327201337).

Almost surely, 2^654402673 is an apocalyptic number.

It is an amenable number.

654402673 is a deficient number, since it is larger than the sum of its proper divisors (1).

654402673 is an equidigital number, since it uses as much as digits as its factorization.

654402673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 654402673 is about 25581.2953737687. The cubic root of 654402673 is about 868.1904843792.

The spelling of 654402673 in words is "six hundred fifty-four million, four hundred two thousand, six hundred seventy-three".