2867831 has 2 divisors, whose sum is σ = 2867832. Its totient is φ = 2867830.

The previous prime is 2867819. The next prime is 2867857. The reversal of 2867831 is 1387682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2867831 - 2¹⁰ = 2866807 is a prime.

It is a super-2 number, since 2×2867831² = 16448909289122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2867791 and 2867800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2867861) 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 as a sum of consecutive naturals, namely, 1433915 + 1433916.

It is an arithmetic number, because the mean of its divisors is an integer number (1433916).

2^2867831 is an apocalyptic number.

2867831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2867831 is an equidigital number, since it uses as much as digits as its factorization.

2867831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 2867831 is about 1693.4671535049. The cubic root of 2867831 is about 142.0750611555.

The spelling of 2867831 in words is "two million, eight hundred sixty-seven thousand, eight hundred thirty-one".