2879825 has 12 divisors (see below), whose sum is σ = 3846108. Its totient is φ = 2126400.

The previous prime is 2879819. The next prime is 2879837. The reversal of 2879825 is 5289782.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 16 + 2879809 = 4^2 + 1697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2879825 is a prime.

It is a Duffinian number.

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, 4106 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (320509).

2^2879825 is an apocalyptic number.

2879825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2879825 is a deficient number, since it is larger than the sum of its proper divisors (966283).

2879825 is a wasteful number, since it uses less digits than its factorization.

2879825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884 (or 8879 counting only the distinct ones).

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

The square root of 2879825 is about 1697.0047141950. The cubic root of 2879825 is about 142.2728503790.

The spelling of 2879825 in words is "two million, eight hundred seventy-nine thousand, eight hundred twenty-five".