8928386449 has 2 divisors, whose sum is σ = 8928386450. Its totient is φ = 8928386448.

The previous prime is 8928386447. The next prime is 8928386471. The reversal of 8928386449 is 9446838298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8834684049 + 93702400 = 93993^2 + 9680^2 .

It is a cyclic number.

It is not a de Polignac number, because 8928386449 - 2¹ = 8928386447 is a prime.

Together with 8928386447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8928386447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4464193224 + 4464193225.

It is an arithmetic number, because the mean of its divisors is an integer number (4464193225).

Almost surely, 2^8928386449 is an apocalyptic number.

It is an amenable number.

8928386449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8928386449 is an equidigital number, since it uses as much as digits as its factorization.

8928386449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23887872, while the sum is 61.

The square root of 8928386449 is about 94490.1394273498. The cubic root of 8928386449 is about 2074.5520065607.

The spelling of 8928386449 in words is "eight billion, nine hundred twenty-eight million, three hundred eighty-six thousand, four hundred forty-nine".