28515482 has 4 divisors (see below), whose sum is σ = 42773226. Its totient is φ = 14257740.

The previous prime is 28515481. The next prime is 28515491. The reversal of 28515482 is 28451582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28451582 = 2 ⋅14225791.

It can be written as a sum of positive squares in only one way, i.e., 27258841 + 1256641 = 5221^2 + 1121^2 .

It is not an unprimeable number, because it can be changed into a prime (28515481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7128869 + ... + 7128872.

Almost surely, 2^28515482 is an apocalyptic number.

28515482 is a deficient number, since it is larger than the sum of its proper divisors (14257744).

28515482 is a wasteful number, since it uses less digits than its factorization.

28515482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257743.

The product of its digits is 25600, while the sum is 35.

The square root of 28515482 is about 5339.9889512994. The cubic root of 28515482 is about 305.5110379123.

The spelling of 28515482 in words is "twenty-eight million, five hundred fifteen thousand, four hundred eighty-two".