28847208 has 32 divisors (see below), whose sum is σ = 77666400. Its totient is φ = 8875968.

The previous prime is 28847207. The next prime is 28847213. The reversal of 28847208 is 80274882.

It is a super-2 number, since 2×28847208² = 1664322818790528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (28847207) 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 7 ways as a sum of consecutive naturals, for example, 45918 + ... + 46541.

It is an arithmetic number, because the mean of its divisors is an integer number (2427075).

Almost surely, 2^28847208 is an apocalyptic number.

It is an amenable number.

28847208 is an abundant number, since it is smaller than the sum of its proper divisors (48819192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28847208 is a wasteful number, since it uses less digits than its factorization.

28847208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92481 (or 92477 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 28847208 is about 5370.9596907815. The cubic root of 28847208 is about 306.6911627145.

The spelling of 28847208 in words is "twenty-eight million, eight hundred forty-seven thousand, two hundred eight".