323620987 has 2 divisors, whose sum is σ = 323620988. Its totient is φ = 323620986.

The previous prime is 323620963. The next prime is 323621009. The reversal of 323620987 is 789026323.

It is a strong prime.

It is an emirp because it is prime and its reverse (789026323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323620987 - 2¹⁹ = 323096699 is a prime.

It is not a weakly prime, because it can be changed into another prime (323620937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161810493 + 161810494.

It is an arithmetic number, because the mean of its divisors is an integer number (161810494).

Almost surely, 2^323620987 is an apocalyptic number.

323620987 is a deficient number, since it is larger than the sum of its proper divisors (1).

323620987 is an equidigital number, since it uses as much as digits as its factorization.

323620987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 323620987 is about 17989.4687803726. The cubic root of 323620987 is about 686.5606252447.

The spelling of 323620987 in words is "three hundred twenty-three million, six hundred twenty thousand, nine hundred eighty-seven".