650707987 has 2 divisors, whose sum is σ = 650707988. Its totient is φ = 650707986.

The previous prime is 650707969. The next prime is 650707999. The reversal of 650707987 is 789707056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650707987 - 2⁷ = 650707859 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 650707987.

It is not a weakly prime, because it can be changed into another prime (650707787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325353993 + 325353994.

It is an arithmetic number, because the mean of its divisors is an integer number (325353994).

Almost surely, 2^650707987 is an apocalyptic number.

650707987 is a deficient number, since it is larger than the sum of its proper divisors (1).

650707987 is an equidigital number, since it uses as much as digits as its factorization.

650707987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 650707987 is about 25508.9785565789. The cubic root of 650707987 is about 866.5534968764.

The spelling of 650707987 in words is "six hundred fifty million, seven hundred seven thousand, nine hundred eighty-seven".