2789980 has 24 divisors (see below), whose sum is σ = 5896800. Its totient is φ = 1108800.

The previous prime is 2789951. The next prime is 2789993. The reversal of 2789980 is 899872.

2789980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3630 + ... + 4330.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

2^2789980 is an apocalyptic number.

2789980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2789980 is an abundant number, since it is smaller than the sum of its proper divisors (3106820).

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

2789980 is a wasteful number, since it uses less digits than its factorization.

2789980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 2789980 is about 1670.3233219949. The cubic root of 2789980 is about 140.7776452758. Note that the first 3 decimals are identical.

The spelling of 2789980 in words is "two million, seven hundred eighty-nine thousand, nine hundred eighty".