650844769 has 2 divisors, whose sum is σ = 650844770. Its totient is φ = 650844768.

The previous prime is 650844737. The next prime is 650844797. The reversal of 650844769 is 967448056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600250000 + 50594769 = 24500^2 + 7113^2 .

It is a cyclic number.

It is not a de Polignac number, because 650844769 - 2⁵ = 650844737 is a prime.

It is a super-2 number, since 2×650844769² = 847197826669326722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (650841769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325422384 + 325422385.

It is an arithmetic number, because the mean of its divisors is an integer number (325422385).

Almost surely, 2^650844769 is an apocalyptic number.

It is an amenable number.

650844769 is a deficient number, since it is larger than the sum of its proper divisors (1).

650844769 is an equidigital number, since it uses as much as digits as its factorization.

650844769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 650844769 is about 25511.6594717004. The cubic root of 650844769 is about 866.6142105496.

The spelling of 650844769 in words is "six hundred fifty million, eight hundred forty-four thousand, seven hundred sixty-nine".