27923144 has 8 divisors (see below), whose sum is σ = 52355910. Its totient is φ = 13961568.

The previous prime is 27923131. The next prime is 27923149. The reversal of 27923144 is 44132972.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 1276900 = 5162^2 + 1130^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 27923144.

It is not an unprimeable number, because it can be changed into a prime (27923149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745189 + ... + 1745204.

Almost surely, 2^27923144 is an apocalyptic number.

It is an amenable number.

27923144 is a deficient number, since it is larger than the sum of its proper divisors (24432766).

27923144 is a wasteful number, since it uses less digits than its factorization.

27923144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490399 (or 3490395 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 27923144 is about 5284.2354224618. The cubic root of 27923144 is about 303.3808091639.

The spelling of 27923144 in words is "twenty-seven million, nine hundred twenty-three thousand, one hundred forty-four".