4392320987 has 2 divisors, whose sum is σ = 4392320988. Its totient is φ = 4392320986.

The previous prime is 4392320981. The next prime is 4392321041. The reversal of 4392320987 is 7890232934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4392320987 - 2⁸ = 4392320731 is a prime.

It is not a weakly prime, because it can be changed into another prime (4392320981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2196160493 + 2196160494.

It is an arithmetic number, because the mean of its divisors is an integer number (2196160494).

Almost surely, 2^4392320987 is an apocalyptic number.

4392320987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4392320987 is an equidigital number, since it uses as much as digits as its factorization.

4392320987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 4392320987 is about 66274.5877920037. The cubic root of 4392320987 is about 1637.6887166065.

The spelling of 4392320987 in words is "four billion, three hundred ninety-two million, three hundred twenty thousand, nine hundred eighty-seven".