654668948 has 6 divisors (see below), whose sum is σ = 1145670666. Its totient is φ = 327334472.

The previous prime is 654668947. The next prime is 654668953. The reversal of 654668948 is 849866456.

It can be written as a sum of positive squares in only one way, i.e., 356001424 + 298667524 = 18868^2 + 17282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 654668893 and 654668902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654668947) 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, 81833615 + ... + 81833622.

It is an arithmetic number, because the mean of its divisors is an integer number (190945111).

Almost surely, 2^654668948 is an apocalyptic number.

It is an amenable number.

654668948 is a deficient number, since it is larger than the sum of its proper divisors (491001718).

654668948 is a wasteful number, since it uses less digits than its factorization.

654668948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163667241 (or 163667239 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 56.

The square root of 654668948 is about 25586.4993307017. The cubic root of 654668948 is about 868.3082233406.

The spelling of 654668948 in words is "six hundred fifty-four million, six hundred sixty-eight thousand, nine hundred forty-eight".