2798688 has 24 divisors (see below), whose sum is σ = 7346808. Its totient is φ = 932864.

The previous prime is 2798687. The next prime is 2798707. The reversal of 2798688 is 8868972.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798687) 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, 14481 + ... + 14672.

It is an arithmetic number, because the mean of its divisors is an integer number (306117).

2^2798688 is an apocalyptic number.

It is an amenable number.

2798688 is an abundant number, since it is smaller than the sum of its proper divisors (4548120).

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

2798688 is a wasteful number, since it uses less digits than its factorization.

2798688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29166 (or 29158 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 2798688 is about 1672.9279721494. The cubic root of 2798688 is about 140.9239567831.

It can be divided in two parts, 2798 and 688, that added together give a triangular number (3486 = T₈₃).

The spelling of 2798688 in words is "two million, seven hundred ninety-eight thousand, six hundred eighty-eight".