650921867 has 2 divisors, whose sum is σ = 650921868. Its totient is φ = 650921866.

The previous prime is 650921851. The next prime is 650922037. The reversal of 650921867 is 768129056.

650921867 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 650921867 - 2⁴ = 650921851 is a prime.

It is not a weakly prime, because it can be changed into another prime (650921837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325460933 + 325460934.

It is an arithmetic number, because the mean of its divisors is an integer number (325460934).

Almost surely, 2^650921867 is an apocalyptic number.

650921867 is a deficient number, since it is larger than the sum of its proper divisors (1).

650921867 is an equidigital number, since it uses as much as digits as its factorization.

650921867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 650921867 is about 25513.1704615479. The cubic root of 650921867 is about 866.6484284295.

The spelling of 650921867 in words is "six hundred fifty million, nine hundred twenty-one thousand, eight hundred sixty-seven".