8422406 has 4 divisors (see below), whose sum is σ = 12633612. Its totient is φ = 4211202.

The previous prime is 8422399. The next prime is 8422411. The reversal of 8422406 is 6042248.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 8³ + 4⁴ + 2¹⁵ + 2²³ + 4⁴ + 0 + 6 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105600 + ... + 2105603.

It is an arithmetic number, because the mean of its divisors is an integer number (3158403).

Almost surely, 2^8422406 is an apocalyptic number.

8422406 is a deficient number, since it is larger than the sum of its proper divisors (4211206).

8422406 is a wasteful number, since it uses less digits than its factorization.

8422406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211205.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 8422406 is about 2902.1381772755. The cubic root of 8422406 is about 203.4598519844.

The spelling of 8422406 in words is "eight million, four hundred twenty-two thousand, four hundred six".