650800000 has 96 divisors (see below), whose sum is σ = 1621536840. Its totient is φ = 260160000.

The previous prime is 650799977. The next prime is 650800061. The reversal of 650800000 is 8056.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 399187 + ... + 400813.

Almost surely, 2^650800000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810768420).

650800000 is an abundant number, since it is smaller than the sum of its proper divisors (970736840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650800000 is an frugal number, since it uses more digits than its factorization.

650800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 650800000 is about 25510.7820342694. The cubic root of 650800000 is about 866.5943397893.

Adding to 650800000 its reverse (8056), we get a palindrome (650808056).

The spelling of 650800000 in words is "six hundred fifty million, eight hundred thousand".