8994900643 has 2 divisors, whose sum is σ = 8994900644. Its totient is φ = 8994900642.

The previous prime is 8994900619. The next prime is 8994900659. The reversal of 8994900643 is 3460094998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8994900643 - 2¹⁷ = 8994769571 is a prime.

It is not a weakly prime, because it can be changed into another prime (8998900643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4497450321 + 4497450322.

It is an arithmetic number, because the mean of its divisors is an integer number (4497450322).

Almost surely, 2^8994900643 is an apocalyptic number.

8994900643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8994900643 is an equidigital number, since it uses as much as digits as its factorization.

8994900643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 8994900643 is about 94841.4500258194. The cubic root of 8994900643 is about 2079.6908936466.

The spelling of 8994900643 in words is "eight billion, nine hundred ninety-four million, nine hundred thousand, six hundred forty-three".