28848457 has 6 divisors (see below), whose sum is σ = 31709594. Its totient is φ = 26225760.

The previous prime is 28848451. The next prime is 28848467. The reversal of 28848457 is 75484882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27994681 + 853776 = 5291^2 + 924^2 .

It is not a de Polignac number, because 28848457 - 2²³ = 20459849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28848451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119088 + ... + 119329.

Almost surely, 2^28848457 is an apocalyptic number.

It is an amenable number.

28848457 is a deficient number, since it is larger than the sum of its proper divisors (2861137).

28848457 is a wasteful number, since it uses less digits than its factorization.

28848457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238439 (or 238428 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The square root of 28848457 is about 5371.0759629705. The cubic root of 28848457 is about 306.6955889284.

The spelling of 28848457 in words is "twenty-eight million, eight hundred forty-eight thousand, four hundred fifty-seven".