28460506 has 4 divisors (see below), whose sum is σ = 42690762. Its totient is φ = 14230252.

The previous prime is 28460503. The next prime is 28460527. The reversal of 28460506 is 60506482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26429881 + 2030625 = 5141^2 + 1425^2 .

It is not an unprimeable number, because it can be changed into a prime (28460501) 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, 7115125 + ... + 7115128.

Almost surely, 2^28460506 is an apocalyptic number.

28460506 is a deficient number, since it is larger than the sum of its proper divisors (14230256).

28460506 is a wasteful number, since it uses less digits than its factorization.

28460506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14230255.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 28460506 is about 5334.8388916630. The cubic root of 28460506 is about 305.3145764471.

Adding to 28460506 its reverse (60506482), we get a palindrome (88966988).

The spelling of 28460506 in words is "twenty-eight million, four hundred sixty thousand, five hundred six".