8557022 has 4 divisors (see below), whose sum is σ = 12835536. Its totient is φ = 4278510.

The previous prime is 8557013. The next prime is 8557033. The reversal of 8557022 is 2207558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2207558 = 2 ⋅1103779.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2139254 + ... + 2139257.

It is an arithmetic number, because the mean of its divisors is an integer number (3208884).

Almost surely, 2^8557022 is an apocalyptic number.

8557022 is a deficient number, since it is larger than the sum of its proper divisors (4278514).

8557022 is a wasteful number, since it uses less digits than its factorization.

8557022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278513.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8557022 is about 2925.2387936714. The cubic root of 8557022 is about 204.5380994407.

The spelling of 8557022 in words is "eight million, five hundred fifty-seven thousand, twenty-two".