8664442 has 8 divisors (see below), whose sum is σ = 13055616. Its totient is φ = 4312572.

The previous prime is 8664433. The next prime is 8664451. The reversal of 8664442 is 2444668.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8664433) and next prime (8664451).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8664398 and 8664407.

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 in 3 ways as a sum of consecutive naturals, for example, 9268 + ... + 10159.

It is an arithmetic number, because the mean of its divisors is an integer number (1631952).

Almost surely, 2^8664442 is an apocalyptic number.

8664442 is a deficient number, since it is larger than the sum of its proper divisors (4391174).

8664442 is a wasteful number, since it uses less digits than its factorization.

8664442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19652.

The product of its digits is 36864, while the sum is 34.

The square root of 8664442 is about 2943.5424236793. The cubic root of 8664442 is about 205.3904278693.

The spelling of 8664442 in words is "eight million, six hundred sixty-four thousand, four hundred forty-two".