28488123 has 12 divisors (see below), whose sum is σ = 41229240. Its totient is φ = 18955296.

The previous prime is 28488067. The next prime is 28488127. The reversal of 28488123 is 32188482.

It is a happy number.

It is not a de Polignac number, because 28488123 - 2⁸ = 28487867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28488127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2340 + ... + 7902.

It is an arithmetic number, because the mean of its divisors is an integer number (3435770).

Almost surely, 2^28488123 is an apocalyptic number.

28488123 is a deficient number, since it is larger than the sum of its proper divisors (12741117).

28488123 is a wasteful number, since it uses less digits than its factorization.

28488123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138 (or 6135 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 28488123 is about 5337.4266271303. The cubic root of 28488123 is about 305.4132997657.

The spelling of 28488123 in words is "twenty-eight million, four hundred eighty-eight thousand, one hundred twenty-three".