47771121 has 8 divisors (see below), whose sum is σ = 64018944. Its totient is φ = 31685360.

The previous prime is 47771099. The next prime is 47771123. The reversal of 47771121 is 12117774.

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 47771121 - 2¹⁰ = 47770097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47771123) 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, 39825 + ... + 41006.

It is an arithmetic number, because the mean of its divisors is an integer number (8002368).

Almost surely, 2^47771121 is an apocalyptic number.

It is an amenable number.

47771121 is a deficient number, since it is larger than the sum of its proper divisors (16247823).

47771121 is a wasteful number, since it uses less digits than its factorization.

47771121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81031.

The product of its digits is 2744, while the sum is 30.

The square root of 47771121 is about 6911.6655735069. The cubic root of 47771121 is about 362.8455580815.

Adding to 47771121 its reverse (12117774), we get a palindrome (59888895).

The spelling of 47771121 in words is "forty-seven million, seven hundred seventy-one thousand, one hundred twenty-one".