654383957 has 2 divisors, whose sum is σ = 654383958. Its totient is φ = 654383956.

The previous prime is 654383909. The next prime is 654383993. The reversal of 654383957 is 759383456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643586161 + 10797796 = 25369^2 + 3286^2 .

It is a cyclic number.

It is not a de Polignac number, because 654383957 - 2⁶ = 654383893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654382957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327191978 + 327191979.

It is an arithmetic number, because the mean of its divisors is an integer number (327191979).

Almost surely, 2^654383957 is an apocalyptic number.

It is an amenable number.

654383957 is a deficient number, since it is larger than the sum of its proper divisors (1).

654383957 is an equidigital number, since it uses as much as digits as its factorization.

654383957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 50.

The square root of 654383957 is about 25580.9295569962. The cubic root of 654383957 is about 868.1822075141.

The spelling of 654383957 in words is "six hundred fifty-four million, three hundred eighty-three thousand, nine hundred fifty-seven".