650734729 has 2 divisors, whose sum is σ = 650734730. Its totient is φ = 650734728.

The previous prime is 650734697. The next prime is 650734751. The reversal of 650734729 is 927437056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514382400 + 136352329 = 22680^2 + 11677^2 .

It is a cyclic number.

It is not a de Polignac number, because 650734729 - 2⁵ = 650734697 is a prime.

It is not a weakly prime, because it can be changed into another prime (650734769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325367364 + 325367365.

It is an arithmetic number, because the mean of its divisors is an integer number (325367365).

Almost surely, 2^650734729 is an apocalyptic number.

It is an amenable number.

650734729 is a deficient number, since it is larger than the sum of its proper divisors (1).

650734729 is an equidigital number, since it uses as much as digits as its factorization.

650734729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 650734729 is about 25509.5027195749. The cubic root of 650734729 is about 866.5653675653.

The spelling of 650734729 in words is "six hundred fifty million, seven hundred thirty-four thousand, seven hundred twenty-nine".