2891825 has 12 divisors (see below), whose sum is σ = 3617328. Its totient is φ = 2293200.

The previous prime is 2891821. The next prime is 2891831. The reversal of 2891825 is 5281982.

It is not a de Polignac number, because 2891825 - 2² = 2891821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2891821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2834 + ... + 3716.

It is an arithmetic number, because the mean of its divisors is an integer number (301444).

2^2891825 is an apocalyptic number.

2891825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2891825 is a deficient number, since it is larger than the sum of its proper divisors (725503).

2891825 is a wasteful number, since it uses less digits than its factorization.

2891825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1019 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 2891825 is about 1700.5366799925. The cubic root of 2891825 is about 142.4701897220.

The spelling of 2891825 in words is "two million, eight hundred ninety-one thousand, eight hundred twenty-five".