8428522 has 8 divisors (see below), whose sum is σ = 12678336. Its totient is φ = 4202412.

The previous prime is 8428517. The next prime is 8428547. The reversal of 8428522 is 2258248.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5008 + ... + 6475.

It is an arithmetic number, because the mean of its divisors is an integer number (1584792).

Almost surely, 2^8428522 is an apocalyptic number.

8428522 is a deficient number, since it is larger than the sum of its proper divisors (4249814).

8428522 is a wasteful number, since it uses less digits than its factorization.

8428522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11852.

The product of its digits is 10240, while the sum is 31.

The square root of 8428522 is about 2903.1916919143. The cubic root of 8428522 is about 203.5090880885.

The spelling of 8428522 in words is "eight million, four hundred twenty-eight thousand, five hundred twenty-two".