3213241987 has 2 divisors, whose sum is σ = 3213241988. Its totient is φ = 3213241986.

The previous prime is 3213241973. The next prime is 3213242047. The reversal of 3213241987 is 7891423123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3213241987 is a prime.

It is not a weakly prime, because it can be changed into another prime (3213241907) 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 as a sum of consecutive naturals, namely, 1606620993 + 1606620994.

It is an arithmetic number, because the mean of its divisors is an integer number (1606620994).

Almost surely, 2^3213241987 is an apocalyptic number.

3213241987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213241987 is an equidigital number, since it uses as much as digits as its factorization.

3213241987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 3213241987 is about 56685.4653945789. The cubic root of 3213241987 is about 1475.6424644672.

The spelling of 3213241987 in words is "three billion, two hundred thirteen million, two hundred forty-one thousand, nine hundred eighty-seven".