650977236 has 120 divisors (see below), whose sum is σ = 2094597120. Its totient is φ = 171678528.

The previous prime is 650977199. The next prime is 650977247. The reversal of 650977236 is 632779056.

It is a junction number, because it is equal to n+sod(n) for n = 650977191 and 650977200.

It is a congruent 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 39 ways as a sum of consecutive naturals, for example, 18445 + ... + 40523.

It is an arithmetic number, because the mean of its divisors is an integer number (17454976).

Almost surely, 2^650977236 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 650977236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047298560).

650977236 is an abundant number, since it is smaller than the sum of its proper divisors (1443619884).

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

650977236 is a wasteful number, since it uses less digits than its factorization.

650977236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22115 (or 22104 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 650977236 is about 25514.2555446950. The cubic root of 650977236 is about 866.6730008084.

The spelling of 650977236 in words is "six hundred fifty million, nine hundred seventy-seven thousand, two hundred thirty-six".