2780876 has 12 divisors (see below), whose sum is σ = 5561808. Its totient is φ = 1191792.

The previous prime is 2780873. The next prime is 2780887. The reversal of 2780876 is 6780872.

2780876 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2780873) 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, 49631 + ... + 49686.

It is an arithmetic number, because the mean of its divisors is an integer number (463484).

2^2780876 is an apocalyptic number.

It is an amenable number.

2780876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2780876 is a wasteful number, since it uses less digits than its factorization.

2780876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99328 (or 99326 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 2780876 is about 1667.5958743053. The cubic root of 2780876 is about 140.6243543016.

The spelling of 2780876 in words is "two million, seven hundred eighty thousand, eight hundred seventy-six".