1288463 has 4 divisors (see below), whose sum is σ = 1405608. Its totient is φ = 1171320.

The previous prime is 1288439. The next prime is 1288487. The reversal of 1288463 is 3648821.

Added to its reverse (3648821) it gives a square (4937284 = 2222²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3648821 = 11 ⋅331711.

It is an interprime number because it is at equal distance from previous prime (1288439) and next prime (1288487).

It is a cyclic number.

It is not a de Polignac number, because 1288463 - 2¹⁴ = 1272079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58556 + ... + 58577.

It is an arithmetic number, because the mean of its divisors is an integer number (351402).

2^1288463 is an apocalyptic number.

1288463 is a deficient number, since it is larger than the sum of its proper divisors (117145).

1288463 is a wasteful number, since it uses less digits than its factorization.

1288463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117144.

The product of its digits is 9216, while the sum is 32.

The square root of 1288463 is about 1135.1048409729. The cubic root of 1288463 is about 108.8154720914.

Adding to 1288463 its reverse (3648821), we get a square (4937284 = 2222²).

The spelling of 1288463 in words is "one million, two hundred eighty-eight thousand, four hundred sixty-three".