323220487 has 2 divisors, whose sum is σ = 323220488. Its totient is φ = 323220486.

The previous prime is 323220463. The next prime is 323220523. The reversal of 323220487 is 784022323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 323220487 - 2¹¹ = 323218439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323220427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161610243 + 161610244.

It is an arithmetic number, because the mean of its divisors is an integer number (161610244).

Almost surely, 2^323220487 is an apocalyptic number.

323220487 is a deficient number, since it is larger than the sum of its proper divisors (1).

323220487 is an equidigital number, since it uses as much as digits as its factorization.

323220487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 323220487 is about 17978.3338215753. Note that the first 3 decimals coincide. The cubic root of 323220487 is about 686.2772886164.

The spelling of 323220487 in words is "three hundred twenty-three million, two hundred twenty thousand, four hundred eighty-seven".