3237998987 has 2 divisors, whose sum is σ = 3237998988. Its totient is φ = 3237998986.

The previous prime is 3237998983. The next prime is 3237999043. The reversal of 3237998987 is 7898997323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3237998987 - 2² = 3237998983 is a prime.

It is not a weakly prime, because it can be changed into another prime (3237998983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1618999493 + 1618999494.

It is an arithmetic number, because the mean of its divisors is an integer number (1618999494).

Almost surely, 2^3237998987 is an apocalyptic number.

3237998987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3237998987 is an equidigital number, since it uses as much as digits as its factorization.

3237998987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41150592, while the sum is 65.

The square root of 3237998987 is about 56903.4180607808. The cubic root of 3237998987 is about 1479.4225570242.

The spelling of 3237998987 in words is "three billion, two hundred thirty-seven million, nine hundred ninety-eight thousand, nine hundred eighty-seven".