8648444 has 24 divisors (see below), whose sum is σ = 18315360. Its totient is φ = 3488256.

The previous prime is 8648413. The next prime is 8648447. The reversal of 8648444 is 4448468.

8648444 = T₁₆ + T₁₇ + ... + T₃₇₂.

It is a super-2 number, since 2×8648444² = 149591167242272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8648398 and 8648407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8648447) 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, 8609 + ... + 9560.

It is an arithmetic number, because the mean of its divisors is an integer number (763140).

Almost surely, 2^8648444 is an apocalyptic number.

It is an amenable number.

8648444 is an abundant number, since it is smaller than the sum of its proper divisors (9666916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8648444 is a wasteful number, since it uses less digits than its factorization.

8648444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18197 (or 18195 counting only the distinct ones).

The product of its digits is 98304, while the sum is 38.

The square root of 8648444 is about 2940.8236941374. The cubic root of 8648444 is about 205.2639392291.

The spelling of 8648444 in words is "eight million, six hundred forty-eight thousand, four hundred forty-four".