47821841 has 16 divisors (see below), whose sum is σ = 52440000. Its totient is φ = 43436736.

The previous prime is 47821817. The next prime is 47821849. The reversal of 47821841 is 14812874.

It is not a de Polignac number, because 47821841 - 2⁶ = 47821777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47821849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125990 + ... + 126368.

It is an arithmetic number, because the mean of its divisors is an integer number (3277500).

Almost surely, 2^47821841 is an apocalyptic number.

It is an amenable number.

47821841 is a deficient number, since it is larger than the sum of its proper divisors (4618159).

47821841 is a wasteful number, since it uses less digits than its factorization.

47821841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its digits is 14336, while the sum is 35.

The square root of 47821841 is about 6915.3337591182. Note that the first 3 decimals coincide. The cubic root of 47821841 is about 362.9739272508.

The spelling of 47821841 in words is "forty-seven million, eight hundred twenty-one thousand, eight hundred forty-one".