885280439 has 2 divisors, whose sum is σ = 885280440. Its totient is φ = 885280438.

The previous prime is 885280421. The next prime is 885280441. The reversal of 885280439 is 934082588.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-885280439 is a prime.

It is a Sophie Germain prime.

Together with 885280441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 885280393 and 885280402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (885280339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442640219 + 442640220.

It is an arithmetic number, because the mean of its divisors is an integer number (442640220).

Almost surely, 2^885280439 is an apocalyptic number.

885280439 is a deficient number, since it is larger than the sum of its proper divisors (1).

885280439 is an equidigital number, since it uses as much as digits as its factorization.

885280439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 885280439 is about 29753.6626148782. The cubic root of 885280439 is about 960.1968776625.

The spelling of 885280439 in words is "eight hundred eighty-five million, two hundred eighty thousand, four hundred thirty-nine".