8634000649 has 2 divisors, whose sum is σ = 8634000650. Its totient is φ = 8634000648.

The previous prime is 8634000629. The next prime is 8634000709. The reversal of 8634000649 is 9460004368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5419904400 + 3214096249 = 73620^2 + 56693^2 .

It is a cyclic number.

It is not a de Polignac number, because 8634000649 - 2¹³ = 8633992457 is a prime.

It is not a weakly prime, because it can be changed into another prime (8634000629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4317000324 + 4317000325.

It is an arithmetic number, because the mean of its divisors is an integer number (4317000325).

Almost surely, 2^8634000649 is an apocalyptic number.

It is an amenable number.

8634000649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8634000649 is an equidigital number, since it uses as much as digits as its factorization.

8634000649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 8634000649 is about 92919.3233348156. The cubic root of 8634000649 is about 2051.4960841012.

The spelling of 8634000649 in words is "eight billion, six hundred thirty-four million, six hundred forty-nine", and thus it is an aban number.