3240736987 has 2 divisors, whose sum is σ = 3240736988. Its totient is φ = 3240736986.

The previous prime is 3240736981. The next prime is 3240737023. The reversal of 3240736987 is 7896370423.

3240736987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3240736987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3240736987.

It is not a weakly prime, because it can be changed into another prime (3240736981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620368493 + 1620368494.

It is an arithmetic number, because the mean of its divisors is an integer number (1620368494).

Almost surely, 2^3240736987 is an apocalyptic number.

3240736987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240736987 is an equidigital number, since it uses as much as digits as its factorization.

3240736987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 3240736987 is about 56927.4712858388. The cubic root of 3240736987 is about 1479.8394315393.

The spelling of 3240736987 in words is "three billion, two hundred forty million, seven hundred thirty-six thousand, nine hundred eighty-seven".