47640628 has 24 divisors (see below), whose sum is σ = 95622912. Its totient is φ = 20344224.

The previous prime is 47640623. The next prime is 47640629. The reversal of 47640628 is 82604674.

47640628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47640623) by changing a digit.

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, 5301 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (3984288).

Almost surely, 2^47640628 is an apocalyptic number.

It is an amenable number.

47640628 is an abundant number, since it is smaller than the sum of its proper divisors (47982284).

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

47640628 is a wasteful number, since it uses less digits than its factorization.

47640628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111 (or 6109 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 47640628 is about 6902.2190634607. The cubic root of 47640628 is about 362.5148702580.

The spelling of 47640628 in words is "forty-seven million, six hundred forty thousand, six hundred twenty-eight".