47007121 has 16 divisors (see below), whose sum is σ = 57712000. Its totient is φ = 38165904.

The previous prime is 47007113. The next prime is 47007139. The reversal of 47007121 is 12170074.

It is not a de Polignac number, because 47007121 - 2³ = 47007113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47007092 and 47007101.

It is not an unprimeable number, because it can be changed into a prime (47007161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2911 + ... + 10123.

It is an arithmetic number, because the mean of its divisors is an integer number (3607000).

Almost surely, 2^47007121 is an apocalyptic number.

It is an amenable number.

47007121 is a deficient number, since it is larger than the sum of its proper divisors (10704879).

47007121 is an equidigital number, since it uses as much as digits as its factorization.

47007121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253 (or 7239 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 47007121 is about 6856.1739330329. The cubic root of 47007121 is about 360.9008329449.

Adding to 47007121 its reverse (12170074), we get a palindrome (59177195).

The spelling of 47007121 in words is "forty-seven million, seven thousand, one hundred twenty-one".