1288473969 has 8 divisors (see below), whose sum is σ = 1726686720. Its totient is φ = 854621936.

The previous prime is 1288473959. The next prime is 1288474003. The reversal of 1288473969 is 9693748821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1288473969 - 2¹⁹ = 1287949681 is a prime.

It is a super-2 number, since 2×1288473969² = 3320330337581225922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1288473959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089489 + ... + 1090670.

It is an arithmetic number, because the mean of its divisors is an integer number (215835840).

Almost surely, 2^1288473969 is an apocalyptic number.

It is an amenable number.

1288473969 is a deficient number, since it is larger than the sum of its proper divisors (438212751).

1288473969 is a wasteful number, since it uses less digits than its factorization.

1288473969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180359.

The product of its digits is 5225472, while the sum is 57.

The square root of 1288473969 is about 35895.3195974071. The cubic root of 1288473969 is about 1088.1578088141.

The spelling of 1288473969 in words is "one billion, two hundred eighty-eight million, four hundred seventy-three thousand, nine hundred sixty-nine".