3331999987 has 2 divisors, whose sum is σ = 3331999988. Its totient is φ = 3331999986.

The previous prime is 3331999969. The next prime is 3332000033. The reversal of 3331999987 is 7899991333.

3331999987 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 not a de Polignac number, because 3331999987 - 2¹¹ = 3331997939 is a prime.

It is a super-2 number, since 2×3331999987² = 22204447826736000338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3331999387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665999993 + 1665999994.

It is an arithmetic number, because the mean of its divisors is an integer number (1665999994).

Almost surely, 2^3331999987 is an apocalyptic number.

3331999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3331999987 is an equidigital number, since it uses as much as digits as its factorization.

3331999987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9920232, while the sum is 61.

The square root of 3331999987 is about 57723.4786460414. The cubic root of 3331999987 is about 1493.6023801366.

The spelling of 3331999987 in words is "three billion, three hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred eighty-seven".