47482921 has 8 divisors (see below), whose sum is σ = 50499720. Its totient is φ = 44491008.

The previous prime is 47482913. The next prime is 47482931. The reversal of 47482921 is 12928474.

It can be written as a sum of positive squares in 4 ways, for example, as 29539225 + 17943696 = 5435^2 + 4236^2 .

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 47482921 - 2³ = 47482913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47482931) 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, 2206 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (6312465).

Almost surely, 2^47482921 is an apocalyptic number.

It is an amenable number.

47482921 is a deficient number, since it is larger than the sum of its proper divisors (3016799).

47482921 is a wasteful number, since it uses less digits than its factorization.

47482921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443.

The product of its digits is 32256, while the sum is 37.

The square root of 47482921 is about 6890.7852237608. The cubic root of 47482921 is about 362.1144114007.

The spelling of 47482921 in words is "forty-seven million, four hundred eighty-two thousand, nine hundred twenty-one".