6818522 has 4 divisors (see below), whose sum is σ = 10227786. Its totient is φ = 3409260.

The previous prime is 6818507. The next prime is 6818527. The reversal of 6818522 is 2258186.

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

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 167281 = 2579^2 + 409^2 .

It is not an unprimeable number, because it can be changed into a prime (6818527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704629 + ... + 1704632.

Almost surely, 2^6818522 is an apocalyptic number.

6818522 is a deficient number, since it is larger than the sum of its proper divisors (3409264).

6818522 is a wasteful number, since it uses less digits than its factorization.

6818522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409263.

The product of its digits is 7680, while the sum is 32.

The square root of 6818522 is about 2611.2299783818. The cubic root of 6818522 is about 189.6255042632.

The spelling of 6818522 in words is "six million, eight hundred eighteen thousand, five hundred twenty-two".