1286628383 has 2 divisors, whose sum is σ = 1286628384. Its totient is φ = 1286628382.

The previous prime is 1286628373. The next prime is 1286628407. The reversal of 1286628383 is 3838266821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3838266821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1286628383 - 2⁶ = 1286628319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286628373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643314191 + 643314192.

It is an arithmetic number, because the mean of its divisors is an integer number (643314192).

Almost surely, 2^1286628383 is an apocalyptic number.

1286628383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286628383 is an equidigital number, since it uses as much as digits as its factorization.

1286628383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 47.

The square root of 1286628383 is about 35869.6024929187. The cubic root of 1286628383 is about 1087.6380082572.

The spelling of 1286628383 in words is "one billion, two hundred eighty-six million, six hundred twenty-eight thousand, three hundred eighty-three".