650891304 has 216 divisors, whose sum is σ = 2125343610. Its totient is φ = 179367552.

The previous prime is 650891281. The next prime is 650891347. The reversal of 650891304 is 403198056.

It can be written as a sum of positive squares in only one way, i.e., 497379204 + 153512100 = 22302^2 + 12390^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 53 ways as a sum of consecutive naturals, for example, 11032027 + ... + 11032085.

Almost surely, 2^650891304 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 650891304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062671805).

650891304 is an abundant number, since it is smaller than the sum of its proper divisors (1474452306).

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

650891304 is a wasteful number, since it uses less digits than its factorization.

650891304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 650891304 is about 25512.5714893658. The cubic root of 650891304 is about 866.6348641848.

The spelling of 650891304 in words is "six hundred fifty million, eight hundred ninety-one thousand, three hundred four".