1283796887 has 2 divisors, whose sum is σ = 1283796888. Its totient is φ = 1283796886.

The previous prime is 1283796827. The next prime is 1283796889. The reversal of 1283796887 is 7886973821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1283796887 - 2⁶ = 1283796823 is a prime.

Together with 1283796889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283796889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641898443 + 641898444.

It is an arithmetic number, because the mean of its divisors is an integer number (641898444).

Almost surely, 2^1283796887 is an apocalyptic number.

1283796887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283796887 is an equidigital number, since it uses as much as digits as its factorization.

1283796887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 59.

The square root of 1283796887 is about 35830.1114567064. Note that the first 3 decimals coincide. The cubic root of 1283796887 is about 1086.8395636273.

The spelling of 1283796887 in words is "one billion, two hundred eighty-three million, seven hundred ninety-six thousand, eight hundred eighty-seven".