47428864 has 108 divisors (see below), whose sum is σ = 116508000. Its totient is φ = 19160064.

The previous prime is 47428859. The next prime is 47428873. The reversal of 47428864 is 46882474.

It is a self number, because there is not a number n which added to its sum of digits gives 47428864.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 238237 + ... + 238435.

Almost surely, 2^47428864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47428864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58254000).

47428864 is an abundant number, since it is smaller than the sum of its proper divisors (69079136).

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

47428864 is a wasteful number, since it uses less digits than its factorization.

47428864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 227 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 47428864 is about 6886.8616945602. The cubic root of 47428864 is about 361.9769426621.

The spelling of 47428864 in words is "forty-seven million, four hundred twenty-eight thousand, eight hundred sixty-four".