28886946 has 16 divisors (see below), whose sum is σ = 63026208. Its totient is φ = 8753600.

The previous prime is 28886939. The next prime is 28886951. The reversal of 28886946 is 64968882.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 218775 + ... + 218906.

It is an arithmetic number, because the mean of its divisors is an integer number (3939138).

Almost surely, 2^28886946 is an apocalyptic number.

28886946 is an abundant number, since it is smaller than the sum of its proper divisors (34139262).

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

28886946 is a wasteful number, since it uses less digits than its factorization.

28886946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437697.

The product of its digits is 1327104, while the sum is 51.

The square root of 28886946 is about 5374.6577565460. The cubic root of 28886946 is about 306.8319238998.

The spelling of 28886946 in words is "twenty-eight million, eight hundred eighty-six thousand, nine hundred forty-six".