47835821 has 8 divisors (see below), whose sum is σ = 53868288. Its totient is φ = 42084000.

The previous prime is 47835817. The next prime is 47835833. The reversal of 47835821 is 12853874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47835821 - 2² = 47835817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47832821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69800 + ... + 70481.

It is an arithmetic number, because the mean of its divisors is an integer number (6733536).

Almost surely, 2^47835821 is an apocalyptic number.

It is an amenable number.

47835821 is a deficient number, since it is larger than the sum of its proper divisors (6032467).

47835821 is a wasteful number, since it uses less digits than its factorization.

47835821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140323.

The product of its digits is 53760, while the sum is 38.

The square root of 47835821 is about 6916.3444824560. The cubic root of 47835821 is about 363.0092938044.

The spelling of 47835821 in words is "forty-seven million, eight hundred thirty-five thousand, eight hundred twenty-one".