2828121 has 8 divisors (see below), whose sum is σ = 3818880. Its totient is φ = 1861392.

The previous prime is 2828113. The next prime is 2828123. The reversal of 2828121 is 1218282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2828121 - 2³ = 2828113 is a prime.

2828121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2828091 and 2828100.

It is not an unprimeable number, because it can be changed into a prime (2828123) 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, 5730 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (477360).

2^2828121 is an apocalyptic number.

It is an amenable number.

2828121 is a deficient number, since it is larger than the sum of its proper divisors (990759).

2828121 is a wasteful number, since it uses less digits than its factorization.

2828121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015.

The product of its digits is 512, while the sum is 24.

The square root of 2828121 is about 1681.7018166132. The cubic root of 2828121 is about 141.4162539741.

The spelling of 2828121 in words is "two million, eight hundred twenty-eight thousand, one hundred twenty-one".