654343289 has 2 divisors, whose sum is σ = 654343290. Its totient is φ = 654343288.

The previous prime is 654343273. The next prime is 654343301. The reversal of 654343289 is 982343456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654336400 + 6889 = 25580^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 654343289 - 2⁴ = 654343273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654343229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327171644 + 327171645.

It is an arithmetic number, because the mean of its divisors is an integer number (327171645).

Almost surely, 2^654343289 is an apocalyptic number.

It is an amenable number.

654343289 is a deficient number, since it is larger than the sum of its proper divisors (1).

654343289 is an equidigital number, since it uses as much as digits as its factorization.

654343289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 654343289 is about 25580.1346556268. The cubic root of 654343289 is about 868.1642221682.

The spelling of 654343289 in words is "six hundred fifty-four million, three hundred forty-three thousand, two hundred eighty-nine".