8864638 has 8 divisors (see below), whose sum is σ = 13318632. Its totient is φ = 4425096.

The previous prime is 8864587. The next prime is 8864641. The reversal of 8864638 is 8364688.

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

It is a junction number, because it is equal to n+sod(n) for n = 8864594 and 8864603.

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, 1920 + ... + 4627.

It is an arithmetic number, because the mean of its divisors is an integer number (1664829).

Almost surely, 2^8864638 is an apocalyptic number.

8864638 is a deficient number, since it is larger than the sum of its proper divisors (4453994).

8864638 is a wasteful number, since it uses less digits than its factorization.

8864638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226.

The product of its digits is 221184, while the sum is 43.

The square root of 8864638 is about 2977.3541945828. The cubic root of 8864638 is about 206.9602792775.

The spelling of 8864638 in words is "eight million, eight hundred sixty-four thousand, six hundred thirty-eight".