650680087 has 2 divisors, whose sum is σ = 650680088. Its totient is φ = 650680086.

The previous prime is 650680073. The next prime is 650680123. The reversal of 650680087 is 780086056.

650680087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 650680087 - 2²³ = 642291479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650680027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325340043 + 325340044.

It is an arithmetic number, because the mean of its divisors is an integer number (325340044).

Almost surely, 2^650680087 is an apocalyptic number.

650680087 is a deficient number, since it is larger than the sum of its proper divisors (1).

650680087 is an equidigital number, since it uses as much as digits as its factorization.

650680087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 650680087 is about 25508.4316844450. The cubic root of 650680087 is about 866.5411118083.

The spelling of 650680087 in words is "six hundred fifty million, six hundred eighty thousand, eighty-seven".