7666422 has 16 divisors (see below), whose sum is σ = 16234992. Its totient is φ = 2405120.

The previous prime is 7666409. The next prime is 7666423. The reversal of 7666422 is 2246667.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37479 + ... + 37682.

It is an arithmetic number, because the mean of its divisors is an integer number (1014687).

Almost surely, 2^7666422 is an apocalyptic number.

7666422 is an abundant number, since it is smaller than the sum of its proper divisors (8568570).

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

7666422 is a wasteful number, since it uses less digits than its factorization.

7666422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75183.

The product of its digits is 24192, while the sum is 33.

The square root of 7666422 is about 2768.8304390121. The cubic root of 7666422 is about 197.1806257341.

The spelling of 7666422 in words is "seven million, six hundred sixty-six thousand, four hundred twenty-two".