47421028 has 12 divisors (see below), whose sum is σ = 83220480. Its totient is φ = 23643752.

The previous prime is 47421001. The next prime is 47421047. The reversal of 47421028 is 82012474.

47421028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47420987 and 47421005.

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 3 ways as a sum of consecutive naturals, for example, 15076 + ... + 17947.

It is an arithmetic number, because the mean of its divisors is an integer number (6935040).

Almost surely, 2^47421028 is an apocalyptic number.

It is an amenable number.

47421028 is a deficient number, since it is larger than the sum of its proper divisors (35799452).

47421028 is a wasteful number, since it uses less digits than its factorization.

47421028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33386 (or 33384 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 47421028 is about 6886.2927617115. The cubic root of 47421028 is about 361.9570067883.

The spelling of 47421028 in words is "forty-seven million, four hundred twenty-one thousand, twenty-eight".