28775476 has 12 divisors (see below), whose sum is σ = 50696100. Its totient is φ = 14290880.

The previous prime is 28775459. The next prime is 28775477. The reversal of 28775476 is 67457782.

It can be written as a sum of positive squares in 2 ways, for example, as 7431076 + 21344400 = 2726^2 + 4620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28775477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23545 + ... + 24736.

It is an arithmetic number, because the mean of its divisors is an integer number (4224675).

Almost surely, 2^28775476 is an apocalyptic number.

It is an amenable number.

28775476 is a deficient number, since it is larger than the sum of its proper divisors (21920624).

28775476 is a wasteful number, since it uses less digits than its factorization.

28775476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48434 (or 48432 counting only the distinct ones).

The product of its digits is 658560, while the sum is 46.

The square root of 28775476 is about 5364.2777705857. The cubic root of 28775476 is about 306.4367437477.

The spelling of 28775476 in words is "twenty-eight million, seven hundred seventy-five thousand, four hundred seventy-six".