422851 has 8 divisors (see below), whose sum is σ = 496944. Its totient is φ = 354720.

The previous prime is 422827. The next prime is 422857. The reversal of 422851 is 158224.

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 422851 - 2⁹ = 422339 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (422857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (62118).

2⁴²²⁸⁵¹ is an apocalyptic number.

422851 is a deficient number, since it is larger than the sum of its proper divisors (74093).

422851 is a wasteful number, since it uses less digits than its factorization.

422851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981.

The product of its digits is 640, while the sum is 22.

The square root of 422851 is about 650.2699439464. The cubic root of 422851 is about 75.0577924926.

The spelling of 422851 in words is "four hundred twenty-two thousand, eight hundred fifty-one".