8663331 has 4 divisors (see below), whose sum is σ = 11551112. Its totient is φ = 5775552.

The previous prime is 8663311. The next prime is 8663357. The reversal of 8663331 is 1333668.

8663331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8663331 - 2¹⁴ = 8646947 is a prime.

It is a super-2 number, since 2×8663331² = 150106608031122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8663311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443886 + ... + 1443891.

It is an arithmetic number, because the mean of its divisors is an integer number (2887778).

Almost surely, 2^8663331 is an apocalyptic number.

8663331 is a deficient number, since it is larger than the sum of its proper divisors (2887781).

8663331 is a wasteful number, since it uses less digits than its factorization.

8663331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887780.

The product of its digits is 7776, while the sum is 30.

The square root of 8663331 is about 2943.3536994388. The cubic root of 8663331 is about 205.3816487497.

Adding to 8663331 its reverse (1333668), we get a palindrome (9996999).

The spelling of 8663331 in words is "eight million, six hundred sixty-three thousand, three hundred thirty-one".