654502868 has 6 divisors (see below), whose sum is σ = 1145380026. Its totient is φ = 327251432.

The previous prime is 654502853. The next prime is 654502897. The reversal of 654502868 is 868205456.

654502868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 420168004 + 234334864 = 20498^2 + 15308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81812855 + ... + 81812862.

It is an arithmetic number, because the mean of its divisors is an integer number (190896671).

Almost surely, 2^654502868 is an apocalyptic number.

It is an amenable number.

654502868 is a deficient number, since it is larger than the sum of its proper divisors (490877158).

654502868 is a wasteful number, since it uses less digits than its factorization.

654502868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163625721 (or 163625719 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 654502868 is about 25583.2536632853. The cubic root of 654502868 is about 868.2347914040.

The spelling of 654502868 in words is "six hundred fifty-four million, five hundred two thousand, eight hundred sixty-eight".