4002022987 has 2 divisors, whose sum is σ = 4002022988. Its totient is φ = 4002022986.

The previous prime is 4002022979. The next prime is 4002023017. The reversal of 4002022987 is 7892202004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4002022987 - 2³ = 4002022979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002022957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001011493 + 2001011494.

It is an arithmetic number, because the mean of its divisors is an integer number (2001011494).

Almost surely, 2^4002022987 is an apocalyptic number.

4002022987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002022987 is an equidigital number, since it uses as much as digits as its factorization.

4002022987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4002022987 is about 63261.5442982544. The cubic root of 4002022987 is about 1587.6686145080.

The spelling of 4002022987 in words is "four billion, two million, twenty-two thousand, nine hundred eighty-seven".