2839121 has 4 divisors (see below), whose sum is σ = 2915892. Its totient is φ = 2762352.

The previous prime is 2839117. The next prime is 2839141. The reversal of 2839121 is 1219382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 83521 = 1660^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2839121 - 2² = 2839117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2839141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38330 + ... + 38403.

It is an arithmetic number, because the mean of its divisors is an integer number (728973).

2^2839121 is an apocalyptic number.

It is an amenable number.

2839121 is a deficient number, since it is larger than the sum of its proper divisors (76771).

2839121 is an equidigital number, since it uses as much as digits as its factorization.

2839121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76770.

The product of its digits is 864, while the sum is 26.

The square root of 2839121 is about 1684.9691391833. The cubic root of 2839121 is about 141.5993633399.

The spelling of 2839121 in words is "two million, eight hundred thirty-nine thousand, one hundred twenty-one".