8623144 has 8 divisors (see below), whose sum is σ = 16168410. Its totient is φ = 4311568.

The previous prime is 8623141. The next prime is 8623193. The reversal of 8623144 is 4413268.

It can be written as a sum of positive squares in only one way, i.e., 6959044 + 1664100 = 2638^2 + 1290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8623144² = 148717224889472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8623141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538939 + ... + 538954.

Almost surely, 2^8623144 is an apocalyptic number.

It is an amenable number.

8623144 is a deficient number, since it is larger than the sum of its proper divisors (7545266).

8623144 is a wasteful number, since it uses less digits than its factorization.

8623144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077899 (or 1077895 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 8623144 is about 2936.5190276925. The cubic root of 8623144 is about 205.0635852726.

The spelling of 8623144 in words is "eight million, six hundred twenty-three thousand, one hundred forty-four".