1363928287 has 2 divisors, whose sum is σ = 1363928288. Its totient is φ = 1363928286.

The previous prime is 1363928273. The next prime is 1363928323. The reversal of 1363928287 is 7828293631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1363928287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1363928287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1363928387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681964143 + 681964144.

It is an arithmetic number, because the mean of its divisors is an integer number (681964144).

Almost surely, 2^1363928287 is an apocalyptic number.

1363928287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363928287 is an equidigital number, since it uses as much as digits as its factorization.

1363928287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 1363928287 is about 36931.3997433079. The cubic root of 1363928287 is about 1108.9973596299.

The spelling of 1363928287 in words is "one billion, three hundred sixty-three million, nine hundred twenty-eight thousand, two hundred eighty-seven".