654364673 has 2 divisors, whose sum is σ = 654364674. Its totient is φ = 654364672.

The previous prime is 654364657. The next prime is 654364727. The reversal of 654364673 is 376463456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616628224 + 37736449 = 24832^2 + 6143^2 .

It is a cyclic number.

It is not a de Polignac number, because 654364673 - 2⁴ = 654364657 is a prime.

It is not a weakly prime, because it can be changed into another prime (654364273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327182336 + 327182337.

It is an arithmetic number, because the mean of its divisors is an integer number (327182337).

Almost surely, 2^654364673 is an apocalyptic number.

It is an amenable number.

654364673 is a deficient number, since it is larger than the sum of its proper divisors (1).

654364673 is an equidigital number, since it uses as much as digits as its factorization.

654364673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 44.

The square root of 654364673 is about 25580.5526328107. The cubic root of 654364673 is about 868.1736792945.

The spelling of 654364673 in words is "six hundred fifty-four million, three hundred sixty-four thousand, six hundred seventy-three".