2872831 has 12 divisors (see below), whose sum is σ = 3162240. Its totient is φ = 2608320.

The previous prime is 2872823. The next prime is 2872853. The reversal of 2872831 is 1382782.

It is not a de Polignac number, because 2872831 - 2³ = 2872823 is a prime.

It is a super-2 number, since 2×2872831² = 16506315909122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 2872793 and 2872802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14946 + ... + 15136.

It is an arithmetic number, because the mean of its divisors is an integer number (263520).

2^2872831 is an apocalyptic number.

2872831 is a deficient number, since it is larger than the sum of its proper divisors (289409).

2872831 is a wasteful number, since it uses less digits than its factorization.

2872831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 293 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 2872831 is about 1694.9427718953. The cubic root of 2872831 is about 142.1575814602.

The spelling of 2872831 in words is "two million, eight hundred seventy-two thousand, eight hundred thirty-one".