2820880879 has 4 divisors (see below), whose sum is σ = 2848268176. Its totient is φ = 2793493584.

The previous prime is 2820880877. The next prime is 2820880897. The reversal of 2820880879 is 9780880282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9780880282 = 2 ⋅4890440141.

It is a cyclic number.

It is not a de Polignac number, because 2820880879 - 2¹ = 2820880877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820880871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13693494 + ... + 13693699.

It is an arithmetic number, because the mean of its divisors is an integer number (712067044).

Almost surely, 2^2820880879 is an apocalyptic number.

2820880879 is a deficient number, since it is larger than the sum of its proper divisors (27387297).

2820880879 is a wasteful number, since it uses less digits than its factorization.

2820880879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27387296.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 2820880879 is about 53111.9654974282. The cubic root of 2820880879 is about 1412.9547345662.

The spelling of 2820880879 in words is "two billion, eight hundred twenty million, eight hundred eighty thousand, eight hundred seventy-nine".