422608287 has 8 divisors (see below), whose sum is σ = 596623536. Its totient is φ = 265165952.

The previous prime is 422608247. The next prime is 422608301. The reversal of 422608287 is 782806224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422608287 - 2⁷ = 422608159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422608217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4143168 + ... + 4143269.

It is an arithmetic number, because the mean of its divisors is an integer number (74577942).

Almost surely, 2^422608287 is an apocalyptic number.

422608287 is a deficient number, since it is larger than the sum of its proper divisors (174015249).

422608287 is a wasteful number, since it uses less digits than its factorization.

422608287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286457.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 422608287 is about 20557.4387266507. The cubic root of 422608287 is about 750.4342889201.

The spelling of 422608287 in words is "four hundred twenty-two million, six hundred eight thousand, two hundred eighty-seven".