2993831 has 2 divisors, whose sum is σ = 2993832. Its totient is φ = 2993830.

The previous prime is 2993827. The next prime is 2993839. The reversal of 2993831 is 1383992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2993831 - 2² = 2993827 is a prime.

It is a super-2 number, since 2×2993831² = 17926048113122, 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 = 2993791 and 2993800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2993839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1496915 + 1496916.

It is an arithmetic number, because the mean of its divisors is an integer number (1496916).

2^2993831 is an apocalyptic number.

2993831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2993831 is an equidigital number, since it uses as much as digits as its factorization.

2993831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 2993831 is about 1730.2690542225. The cubic root of 2993831 is about 144.1260309959.

The spelling of 2993831 in words is "two million, nine hundred ninety-three thousand, eight hundred thirty-one".