7822664 has 16 divisors (see below), whose sum is σ = 15141120. Its totient is φ = 3785040.

The previous prime is 7822657. The next prime is 7822679. The reversal of 7822664 is 4662287.

It is a super-2 number, since 2×7822664² = 122388144113792, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15524 + ... + 16019.

It is an arithmetic number, because the mean of its divisors is an integer number (946320).

Almost surely, 2^7822664 is an apocalyptic number.

It is an amenable number.

7822664 is a deficient number, since it is larger than the sum of its proper divisors (7318456).

7822664 is a wasteful number, since it uses less digits than its factorization.

7822664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580 (or 31576 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 7822664 is about 2796.9025724898. The cubic root of 7822664 is about 198.5111440425.

The spelling of 7822664 in words is "seven million, eight hundred twenty-two thousand, six hundred sixty-four".