47681121 has 8 divisors (see below), whose sum is σ = 63614304. Its totient is φ = 31767680.

The previous prime is 47681113. The next prime is 47681149. The reversal of 47681121 is 12118674.

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 47681121 - 2³ = 47681113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47681021) 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, 2161 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (7951788).

Almost surely, 2^47681121 is an apocalyptic number.

It is an amenable number.

47681121 is a deficient number, since it is larger than the sum of its proper divisors (15933183).

47681121 is a wasteful number, since it uses less digits than its factorization.

47681121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9871.

The product of its digits is 2688, while the sum is 30.

The square root of 47681121 is about 6905.1517724088. The cubic root of 47681121 is about 362.6175498282.

Adding to 47681121 its reverse (12118674), we get a palindrome (59799795).

The spelling of 47681121 in words is "forty-seven million, six hundred eighty-one thousand, one hundred twenty-one".