47821146 has 8 divisors (see below), whose sum is σ = 95642304. Its totient is φ = 15940380.

The previous prime is 47821141. The next prime is 47821171. The reversal of 47821146 is 64112874.

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

47821146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (47821141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3985090 + ... + 3985101.

It is an arithmetic number, because the mean of its divisors is an integer number (11955288).

Almost surely, 2^47821146 is an apocalyptic number.

47821146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47821146 is a wasteful number, since it uses less digits than its factorization.

47821146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970196.

The product of its digits is 10752, while the sum is 33.

The square root of 47821146 is about 6915.2835082880. The cubic root of 47821146 is about 362.9721688625.

The spelling of 47821146 in words is "forty-seven million, eight hundred twenty-one thousand, one hundred forty-six".