1323886997 has 12 divisors (see below), whose sum is σ = 1402529580. Its totient is φ = 1249454592.

The previous prime is 1323886981. The next prime is 1323887003. The reversal of 1323886997 is 7996883231.

It can be written as a sum of positive squares in 2 ways, for example, as 457703236 + 866183761 = 21394^2 + 29431^2 .

It is not a de Polignac number, because 1323886997 - 2⁴ = 1323886981 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 (1323886937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90293 + ... + 103925.

It is an arithmetic number, because the mean of its divisors is an integer number (116877465).

Almost surely, 2^1323886997 is an apocalyptic number.

It is an amenable number.

1323886997 is a deficient number, since it is larger than the sum of its proper divisors (78642583).

1323886997 is a wasteful number, since it uses less digits than its factorization.

1323886997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13940 (or 13921 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 1323886997 is about 36385.2579625320. The cubic root of 1323886997 is about 1098.0369940411.

The spelling of 1323886997 in words is "one billion, three hundred twenty-three million, eight hundred eighty-six thousand, nine hundred ninety-seven".