2798825 has 6 divisors (see below), whose sum is σ = 3470574. Its totient is φ = 2239040.

The previous prime is 2798821. The next prime is 2798837. The reversal of 2798825 is 5288972.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 29929 + 2768896 = 173^2 + 1664^2 .

It is not a de Polignac number, because 2798825 - 2² = 2798821 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 7⁷ + 9⁶ + 8³ + 8⁴ + 2²⁰ + 5⁸ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2798821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55952 + ... + 56001.

It is an arithmetic number, because the mean of its divisors is an integer number (578429).

2^2798825 is an apocalyptic number.

2798825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2798825 is a deficient number, since it is larger than the sum of its proper divisors (671749).

2798825 is a wasteful number, since it uses less digits than its factorization.

2798825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111963 (or 111958 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 2798825 is about 1672.9689178224. The cubic root of 2798825 is about 140.9262562256.

The spelling of 2798825 in words is "two million, seven hundred ninety-eight thousand, eight hundred twenty-five".