650797264 has 120 divisors (see below), whose sum is σ = 1495169928. Its totient is φ = 271687680.

The previous prime is 650797261. The next prime is 650797267. The reversal of 650797264 is 462797056.

It is an interprime number because it is at equal distance from previous prime (650797261) and next prime (650797267).

It can be written as a sum of positive squares in 4 ways, for example, as 2585664 + 648211600 = 1608^2 + 25460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650797261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9713359 + ... + 9713425.

Almost surely, 2^650797264 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 650797264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747584964).

650797264 is an abundant number, since it is smaller than the sum of its proper divisors (844372664).

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

650797264 is a wasteful number, since it uses less digits than its factorization.

650797264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 650797264 is about 25510.7284098279. The cubic root of 650797264 is about 866.5931253837.

The spelling of 650797264 in words is "six hundred fifty million, seven hundred ninety-seven thousand, two hundred sixty-four".