1388876263 has 2 divisors, whose sum is σ = 1388876264. Its totient is φ = 1388876262.

The previous prime is 1388876171. The next prime is 1388876309. The reversal of 1388876263 is 3626788831.

It is a strong prime.

It is an emirp because it is prime and its reverse (3626788831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388876263 - 2⁹ = 1388875751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1388876263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388876063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694438131 + 694438132.

It is an arithmetic number, because the mean of its divisors is an integer number (694438132).

Almost surely, 2^1388876263 is an apocalyptic number.

1388876263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388876263 is an equidigital number, since it uses as much as digits as its factorization.

1388876263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The square root of 1388876263 is about 37267.6302305365. The cubic root of 1388876263 is about 1115.7182025856.

The spelling of 1388876263 in words is "one billion, three hundred eighty-eight million, eight hundred seventy-six thousand, two hundred sixty-three".