8442663 has 8 divisors (see below), whose sum is σ = 11518848. Its totient is φ = 5497464.

The previous prime is 8442653. The next prime is 8442667. The reversal of 8442663 is 3662448.

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

It is not a de Polignac number, because 8442663 - 2⁴ = 8442647 is a prime.

It is a d-powerful number, because it can be written as 8³ + 4³ + 4⁴ + 2²³ + 6 + 6⁶ + 3⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442667) 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, 32595 + ... + 32852.

It is an arithmetic number, because the mean of its divisors is an integer number (1439856).

Almost surely, 2^8442663 is an apocalyptic number.

8442663 is a deficient number, since it is larger than the sum of its proper divisors (3076185).

8442663 is a wasteful number, since it uses less digits than its factorization.

8442663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65493.

The product of its digits is 27648, while the sum is 33.

The square root of 8442663 is about 2905.6260943212. The cubic root of 8442663 is about 203.6228373352.

The spelling of 8442663 in words is "eight million, four hundred forty-two thousand, six hundred sixty-three".