12842887 has 2 divisors, whose sum is σ = 12842888. Its totient is φ = 12842886.

The previous prime is 12842861. The next prime is 12842923. The reversal of 12842887 is 78824821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12842887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12842807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421443 + 6421444.

It is an arithmetic number, because the mean of its divisors is an integer number (6421444).

Almost surely, 2^12842887 is an apocalyptic number.

12842887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12842887 is an equidigital number, since it uses as much as digits as its factorization.

12842887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 40.

The square root of 12842887 is about 3583.6973923589. The cubic root of 12842887 is about 234.1823827099.

The spelling of 12842887 in words is "twelve million, eight hundred forty-two thousand, eight hundred eighty-seven".