2820117 has 8 divisors (see below), whose sum is σ = 3772224. Its totient is φ = 1874048.

The previous prime is 2820109. The next prime is 2820119. The reversal of 2820117 is 7110282.

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 2820117 - 2³ = 2820109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2820093 and 2820102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820119) 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, 273 + ... + 2390.

It is an arithmetic number, because the mean of its divisors is an integer number (471528).

2^2820117 is an apocalyptic number.

It is an amenable number.

2820117 is a deficient number, since it is larger than the sum of its proper divisors (952107).

2820117 is a wasteful number, since it uses less digits than its factorization.

2820117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2820117 is about 1679.3203982564. The cubic root of 2820117 is about 141.2827182933.

Adding to 2820117 its reverse (7110282), we get a palindrome (9930399).

The spelling of 2820117 in words is "two million, eight hundred twenty thousand, one hundred seventeen".