654327197 has 2 divisors, whose sum is σ = 654327198. Its totient is φ = 654327196.

The previous prime is 654327181. The next prime is 654327211. The reversal of 654327197 is 791723456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622302916 + 32024281 = 24946^2 + 5659^2 .

It is a cyclic number.

It is not a de Polignac number, because 654327197 - 2⁴ = 654327181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654327697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327163598 + 327163599.

It is an arithmetic number, because the mean of its divisors is an integer number (327163599).

Almost surely, 2^654327197 is an apocalyptic number.

It is an amenable number.

654327197 is a deficient number, since it is larger than the sum of its proper divisors (1).

654327197 is an equidigital number, since it uses as much as digits as its factorization.

654327197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 654327197 is about 25579.8201127373. The cubic root of 654327197 is about 868.1571053059.

The spelling of 654327197 in words is "six hundred fifty-four million, three hundred twenty-seven thousand, one hundred ninety-seven".