1323987 has 16 divisors (see below), whose sum is σ = 2049792. Its totient is φ = 744480.

The previous prime is 1323967. The next prime is 1323997. The reversal of 1323987 is 7893231.

It is not a de Polignac number, because 1323987 - 2⁶ = 1323923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323967) 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 15 ways as a sum of consecutive naturals, for example, 937 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (128112).

2^1323987 is an apocalyptic number.

1323987 is a deficient number, since it is larger than the sum of its proper divisors (725805).

1323987 is an equidigital number, since it uses as much as digits as its factorization.

1323987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its digits is 9072, while the sum is 33.

The square root of 1323987 is about 1150.6463401063. The cubic root of 1323987 is about 109.8064640970.

The spelling of 1323987 in words is "one million, three hundred twenty-three thousand, nine hundred eighty-seven".