6659622 has 12 divisors (see below), whose sum is σ = 14429220. Its totient is φ = 2219868.

The previous prime is 6659591. The next prime is 6659623. The reversal of 6659622 is 2269566.

6659622 is a `hidden beast` number, since 66 + 596 + 2 + 2 = 666.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6659623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184972 + ... + 185007.

It is an arithmetic number, because the mean of its divisors is an integer number (1202435).

Almost surely, 2^6659622 is an apocalyptic number.

6659622 is an abundant number, since it is smaller than the sum of its proper divisors (7769598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6659622 is a wasteful number, since it uses less digits than its factorization.

6659622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369987 (or 369984 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 6659622 is about 2580.6243430612. The cubic root of 6659622 is about 188.1408895605.

The spelling of 6659622 in words is "six million, six hundred fifty-nine thousand, six hundred twenty-two".