3218406487 has 2 divisors, whose sum is σ = 3218406488. Its totient is φ = 3218406486.

The previous prime is 3218406427. The next prime is 3218406539. The reversal of 3218406487 is 7846048123.

It is a strong prime.

It is an emirp because it is prime and its reverse (7846048123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3218406487 - 2¹¹ = 3218404439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3218406427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609203243 + 1609203244.

It is an arithmetic number, because the mean of its divisors is an integer number (1609203244).

Almost surely, 2^3218406487 is an apocalyptic number.

3218406487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218406487 is an equidigital number, since it uses as much as digits as its factorization.

3218406487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 3218406487 is about 56731.0011105039. The cubic root of 3218406487 is about 1476.4326193160.

The spelling of 3218406487 in words is "three billion, two hundred eighteen million, four hundred six thousand, four hundred eighty-seven".