2798505 has 12 divisors (see below), whose sum is σ = 4850820. Its totient is φ = 1492512.

The previous prime is 2798503. The next prime is 2798513. The reversal of 2798505 is 5058972.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 2152089 = 804^2 + 1467^2 .

It is not a de Polignac number, because 2798505 - 2¹ = 2798503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2798505.

It is not an unprimeable number, because it can be changed into a prime (2798503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31050 + ... + 31139.

It is an arithmetic number, because the mean of its divisors is an integer number (404235).

2^2798505 is an apocalyptic number.

It is an amenable number.

2798505 is a deficient number, since it is larger than the sum of its proper divisors (2052315).

2798505 is a wasteful number, since it uses less digits than its factorization.

2798505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62200 (or 62197 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2798505 is about 1672.8732767308. The cubic root of 2798505 is about 140.9208851478.

The spelling of 2798505 in words is "two million, seven hundred ninety-eight thousand, five hundred five".