8949791 has 2 divisors, whose sum is σ = 8949792. Its totient is φ = 8949790.

The previous prime is 8949781. The next prime is 8949797. The reversal of 8949791 is 1979498.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8949791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8949797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4474895 + 4474896.

It is an arithmetic number, because the mean of its divisors is an integer number (4474896).

Almost surely, 2^8949791 is an apocalyptic number.

8949791 is a deficient number, since it is larger than the sum of its proper divisors (1).

8949791 is an equidigital number, since it uses as much as digits as its factorization.

8949791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 8949791 is about 2991.6201296288. The cubic root of 8949791 is about 207.6208499100.

The spelling of 8949791 in words is "eight million, nine hundred forty-nine thousand, seven hundred ninety-one".