654840964 has 12 divisors (see below), whose sum is σ = 1146239500. Its totient is φ = 327343968.

The previous prime is 654840961. The next prime is 654840973. The reversal of 654840964 is 469048456.

It can be written as a sum of positive squares in 2 ways, for example, as 644652100 + 10188864 = 25390^2 + 3192^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (654840961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2962 + ... + 36310.

Almost surely, 2^654840964 is an apocalyptic number.

It is an amenable number.

654840964 is a deficient number, since it is larger than the sum of its proper divisors (491398536).

654840964 is a wasteful number, since it uses less digits than its factorization.

654840964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38262 (or 38260 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 654840964 is about 25589.8605701555. The cubic root of 654840964 is about 868.3842667759.

The spelling of 654840964 in words is "six hundred fifty-four million, eight hundred forty thousand, nine hundred sixty-four".