1288323327 has 24 divisors (see below), whose sum is σ = 1795264560. Its totient is φ = 821673600.

The previous prime is 1288323293. The next prime is 1288323331. The reversal of 1288323327 is 7233238821.

It is not a de Polignac number, because 1288323327 - 2⁶ = 1288323263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288323397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254077 + ... + 259097.

It is an arithmetic number, because the mean of its divisors is an integer number (74802690).

Almost surely, 2^1288323327 is an apocalyptic number.

1288323327 is a deficient number, since it is larger than the sum of its proper divisors (506941233).

1288323327 is an equidigital number, since it uses as much as digits as its factorization.

1288323327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175 (or 5144 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 1288323327 is about 35893.2211845078. The cubic root of 1288323327 is about 1088.1153998194.

The spelling of 1288323327 in words is "one billion, two hundred eighty-eight million, three hundred twenty-three thousand, three hundred twenty-seven".