422033987 has 2 divisors, whose sum is σ = 422033988. Its totient is φ = 422033986.

The previous prime is 422033981. The next prime is 422034049. The reversal of 422033987 is 789330224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422033987 - 2²² = 417839683 is a prime.

It is a super-2 number, since 2×422033987² = 356225372366232338, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422033987.

It is not a weakly prime, because it can be changed into another prime (422033981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211016993 + 211016994.

It is an arithmetic number, because the mean of its divisors is an integer number (211016994).

Almost surely, 2^422033987 is an apocalyptic number.

422033987 is a deficient number, since it is larger than the sum of its proper divisors (1).

422033987 is an equidigital number, since it uses as much as digits as its factorization.

422033987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 422033987 is about 20543.4657981559. The cubic root of 422033987 is about 750.0942026858.

The spelling of 422033987 in words is "four hundred twenty-two million, thirty-three thousand, nine hundred eighty-seven".