654834866 has 16 divisors (see below), whose sum is σ = 1188608256. Its totient is φ = 264134976.

The previous prime is 654834847. The next prime is 654834931. The reversal of 654834866 is 668438456.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1375466 + ... + 1375941.

It is an arithmetic number, because the mean of its divisors is an integer number (74288016).

Almost surely, 2^654834866 is an apocalyptic number.

654834866 is a deficient number, since it is larger than the sum of its proper divisors (533773390).

654834866 is a wasteful number, since it uses less digits than its factorization.

654834866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751433.

The product of its digits is 3317760, while the sum is 50.

The square root of 654834866 is about 25589.7414211242. The cubic root of 654834866 is about 868.3815712493.

It can be divided in two parts, 6548 and 34866, that added together give a palindrome (41414).

The spelling of 654834866 in words is "six hundred fifty-four million, eight hundred thirty-four thousand, eight hundred sixty-six".