654297983 has 2 divisors, whose sum is σ = 654297984. Its totient is φ = 654297982.

The previous prime is 654297953. The next prime is 654297991. The reversal of 654297983 is 389792456.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654297983 - 2¹⁰ = 654296959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654297923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327148991 + 327148992.

It is an arithmetic number, because the mean of its divisors is an integer number (327148992).

Almost surely, 2^654297983 is an apocalyptic number.

654297983 is a deficient number, since it is larger than the sum of its proper divisors (1).

654297983 is an equidigital number, since it uses as much as digits as its factorization.

654297983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The square root of 654297983 is about 25579.2490702913. The cubic root of 654297983 is about 868.1441847980.

The spelling of 654297983 in words is "six hundred fifty-four million, two hundred ninety-seven thousand, nine hundred eighty-three".