654740617 has 2 divisors, whose sum is σ = 654740618. Its totient is φ = 654740616.

The previous prime is 654740579. The next prime is 654740621. The reversal of 654740617 is 716047456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494439696 + 160300921 = 22236^2 + 12661^2 .

It is a cyclic number.

It is not a de Polignac number, because 654740617 - 2¹⁵ = 654707849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654740617.

It is not a weakly prime, because it can be changed into another prime (654740657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327370308 + 327370309.

It is an arithmetic number, because the mean of its divisors is an integer number (327370309).

Almost surely, 2^654740617 is an apocalyptic number.

It is an amenable number.

654740617 is a deficient number, since it is larger than the sum of its proper divisors (1).

654740617 is an equidigital number, since it uses as much as digits as its factorization.

654740617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 654740617 is about 25587.8998161240. The cubic root of 654740617 is about 868.3399078082.

The spelling of 654740617 in words is "six hundred fifty-four million, seven hundred forty thousand, six hundred seventeen".