2789860 has 12 divisors (see below), whose sum is σ = 5858748. Its totient is φ = 1115936.

The previous prime is 2789849. The next prime is 2789861. The reversal of 2789860 is 689872.

It can be written as a sum of positive squares in 2 ways, for example, as 1364224 + 1425636 = 1168^2 + 1194^2 .

It is not an unprimeable number, because it can be changed into a prime (2789861) 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, 69727 + ... + 69766.

It is an arithmetic number, because the mean of its divisors is an integer number (488229).

2^2789860 is an apocalyptic number.

2789860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2789860 is an abundant number, since it is smaller than the sum of its proper divisors (3068888).

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

2789860 is a wasteful number, since it uses less digits than its factorization.

2789860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139502 (or 139500 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2789860 is about 1670.2874004195. The cubic root of 2789860 is about 140.7756269149.

The spelling of 2789860 in words is "two million, seven hundred eighty-nine thousand, eight hundred sixty".