2825831 has 4 divisors (see below), whose sum is σ = 2891592. Its totient is φ = 2760072.

The previous prime is 2825827. The next prime is 2825833. The reversal of 2825831 is 1385282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1385282 = 2 ⋅692641.

It is a cyclic number.

It is not a de Polignac number, because 2825831 - 2² = 2825827 is a prime.

It is a super-2 number, since 2×2825831² = 15970641681122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2825794 and 2825803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32816 + ... + 32901.

It is an arithmetic number, because the mean of its divisors is an integer number (722898).

2^2825831 is an apocalyptic number.

2825831 is a deficient number, since it is larger than the sum of its proper divisors (65761).

2825831 is an equidigital number, since it uses as much as digits as its factorization.

2825831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65760.

The product of its digits is 3840, while the sum is 29.

The square root of 2825831 is about 1681.0208208110. The cubic root of 2825831 is about 141.3780742464.

The spelling of 2825831 in words is "two million, eight hundred twenty-five thousand, eight hundred thirty-one".