2447121 has 8 divisors (see below), whose sum is σ = 3277440. Its totient is φ = 1624112.

The previous prime is 2447111. The next prime is 2447141. The reversal of 2447121 is 1217442.

It is a happy number.

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 2447121 - 2¹⁰ = 2446097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2447111) 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, 990 + ... + 2423.

It is an arithmetic number, because the mean of its divisors is an integer number (409680).

2^2447121 is an apocalyptic number.

It is an amenable number.

2447121 is a deficient number, since it is larger than the sum of its proper divisors (830319).

2447121 is a wasteful number, since it uses less digits than its factorization.

2447121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655.

The product of its digits is 448, while the sum is 21.

The square root of 2447121 is about 1564.3276511013. The cubic root of 2447121 is about 134.7571491326.

The spelling of 2447121 in words is "two million, four hundred forty-seven thousand, one hundred twenty-one".