2147206387 has 2 divisors, whose sum is σ = 2147206388. Its totient is φ = 2147206386.

The previous prime is 2147206379. The next prime is 2147206433. The reversal of 2147206387 is 7836027412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2147206387 - 2³ = 2147206379 is a prime.

It is a super-2 number, since 2×2147206387² = 9220990536747187538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2147206307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073603193 + 1073603194.

It is an arithmetic number, because the mean of its divisors is an integer number (1073603194).

Almost surely, 2^2147206387 is an apocalyptic number.

2147206387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147206387 is an equidigital number, since it uses as much as digits as its factorization.

2147206387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 2147206387 is about 46337.9583818709. The cubic root of 2147206387 is about 1290.1036286760.

The spelling of 2147206387 in words is "two billion, one hundred forty-seven million, two hundred six thousand, three hundred eighty-seven".