2847880 has 48 divisors (see below), whose sum is σ = 7459020. Its totient is φ = 975744.

The previous prime is 2847863. The next prime is 2847893. The reversal of 2847880 is 887482.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 164836 = 1638^2 + 406^2 .

It is a super-2 number, since 2×2847880² = 16220840988800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1234 + ... + 2686.

2^2847880 is an apocalyptic number.

2847880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2847880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3729510).

2847880 is an abundant number, since it is smaller than the sum of its proper divisors (4611140).

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

2847880 is a wasteful number, since it uses less digits than its factorization.

2847880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 2847880 is about 1687.5662949941. The cubic root of 2847880 is about 141.7448303759.

The spelling of 2847880 in words is "two million, eight hundred forty-seven thousand, eight hundred eighty".