8949909243 has 64 divisors (see below), whose sum is σ = 13675622400. Its totient is φ = 5158028160.

The previous prime is 8949909223. The next prime is 8949909271. The reversal of 8949909243 is 3429099498.

It is not a de Polignac number, because 8949909243 - 2⁹ = 8949908731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8949909223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20386818 + ... + 20387256.

It is an arithmetic number, because the mean of its divisors is an integer number (213681600).

Almost surely, 2^8949909243 is an apocalyptic number.

8949909243 is a deficient number, since it is larger than the sum of its proper divisors (4725713157).

8949909243 is a wasteful number, since it uses less digits than its factorization.

8949909243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The square root of 8949909243 is about 94603.9599752568. The cubic root of 8949909243 is about 2076.2176425550.

The spelling of 8949909243 in words is "eight billion, nine hundred forty-nine million, nine hundred nine thousand, two hundred forty-three".