650744077 has 2 divisors, whose sum is σ = 650744078. Its totient is φ = 650744076.

The previous prime is 650744047. The next prime is 650744089. The reversal of 650744077 is 770447056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644448996 + 6295081 = 25386^2 + 2509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650744077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650744047) by changing a digit.

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 as a sum of consecutive naturals, namely, 325372038 + 325372039.

It is an arithmetic number, because the mean of its divisors is an integer number (325372039).

Almost surely, 2^650744077 is an apocalyptic number.

It is an amenable number.

650744077 is a deficient number, since it is larger than the sum of its proper divisors (1).

650744077 is an equidigital number, since it uses as much as digits as its factorization.

650744077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 650744077 is about 25509.6859447544. The cubic root of 650744077 is about 866.5695170361.

The spelling of 650744077 in words is "six hundred fifty million, seven hundred forty-four thousand, seventy-seven".