8879609449 has 2 divisors, whose sum is σ = 8879609450. Its totient is φ = 8879609448.

The previous prime is 8879609419. The next prime is 8879609483. The reversal of 8879609449 is 9449069788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8057755225 + 821854224 = 89765^2 + 28668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8879609449 is a prime.

It is not a weakly prime, because it can be changed into another prime (8879609419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4439804724 + 4439804725.

It is an arithmetic number, because the mean of its divisors is an integer number (4439804725).

Almost surely, 2^8879609449 is an apocalyptic number.

It is an amenable number.

8879609449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8879609449 is an equidigital number, since it uses as much as digits as its factorization.

8879609449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 8879609449 is about 94231.6796464968. The cubic root of 8879609449 is about 2070.7672518903.

The spelling of 8879609449 in words is "eight billion, eight hundred seventy-nine million, six hundred nine thousand, four hundred forty-nine".