1388832463 has 2 divisors, whose sum is σ = 1388832464. Its totient is φ = 1388832462.

The previous prime is 1388832461. The next prime is 1388832509. The reversal of 1388832463 is 3642388831.

It is an a-pointer prime, because the next prime (1388832509) can be obtained adding 1388832463 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1388832463 - 2¹ = 1388832461 is a prime.

It is a super-2 number, since 2×1388832463² = 3857711220565292738, which contains 22 as substring.

Together with 1388832461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388832461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694416231 + 694416232.

It is an arithmetic number, because the mean of its divisors is an integer number (694416232).

Almost surely, 2^1388832463 is an apocalyptic number.

1388832463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388832463 is an equidigital number, since it uses as much as digits as its factorization.

1388832463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 46.

The square root of 1388832463 is about 37267.0425845679. The cubic root of 1388832463 is about 1115.7064739260.

The spelling of 1388832463 in words is "one billion, three hundred eighty-eight million, eight hundred thirty-two thousand, four hundred sixty-three".