650641356 has 96 divisors (see below), whose sum is σ = 1730393280. Its totient is φ = 211341312.

The previous prime is 650641349. The next prime is 650641363. The reversal of 650641356 is 653146056.

650641356 is a `hidden beast` number, since 6 + 5 + 0 + 641 + 3 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (650641349) and next prime (650641363).

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

It is a self number, because there is not a number n which added to its sum of digits gives 650641356.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1127340 + ... + 1127916.

It is an arithmetic number, because the mean of its divisors is an integer number (18024930).

Almost surely, 2^650641356 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 650641356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865196640).

650641356 is an abundant number, since it is smaller than the sum of its proper divisors (1079751924).

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

650641356 is a wasteful number, since it uses less digits than its factorization.

650641356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 650641356 is about 25507.6724928011. The cubic root of 650641356 is about 866.5239181723.

Subtracting from 650641356 its product of nonzero digits (64800), we obtain a triangular number (650576556 = T₃₆₀₇₁).

The spelling of 650641356 in words is "six hundred fifty million, six hundred forty-one thousand, three hundred fifty-six".