2947331 has 2 divisors, whose sum is σ = 2947332. Its totient is φ = 2947330.

The previous prime is 2947291. The next prime is 2947333. The reversal of 2947331 is 1337492.

2947331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2947331 - 2¹⁴ = 2930947 is a prime.

It is a super-2 number, since 2×2947331² = 17373520047122, which contains 22 as substring.

Together with 2947333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2947294 and 2947303.

It is not a weakly prime, because it can be changed into another prime (2947333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473665 + 1473666.

It is an arithmetic number, because the mean of its divisors is an integer number (1473666).

2^2947331 is an apocalyptic number.

2947331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947331 is an equidigital number, since it uses as much as digits as its factorization.

2947331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 2947331 is about 1716.7792519716. The cubic root of 2947331 is about 143.3759485088.

The spelling of 2947331 in words is "two million, nine hundred forty-seven thousand, three hundred thirty-one".