28472848 has 20 divisors (see below), whose sum is σ = 56072428. Its totient is φ = 14002560.

The previous prime is 28472839. The next prime is 28472879. The reversal of 28472848 is 84827482.

It can be written as a sum of positive squares in 2 ways, for example, as 1557504 + 26915344 = 1248^2 + 5188^2 .

It is a super-2 number, since 2×28472848² = 1621406146462208, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13611 + ... + 15562.

Almost surely, 2^28472848 is an apocalyptic number.

It is an amenable number.

28472848 is a deficient number, since it is larger than the sum of its proper divisors (27599580).

28472848 is a wasteful number, since it uses less digits than its factorization.

28472848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29242 (or 29236 counting only the distinct ones).

The product of its digits is 229376, while the sum is 43.

The square root of 28472848 is about 5335.9955022470. The cubic root of 28472848 is about 305.3587036544.

The spelling of 28472848 in words is "twenty-eight million, four hundred seventy-two thousand, eight hundred forty-eight".