2947213 has 2 divisors, whose sum is σ = 2947214. Its totient is φ = 2947212.

The previous prime is 2947211. The next prime is 2947249. The reversal of 2947213 is 3127492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2883204 + 64009 = 1698^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947213 - 2¹ = 2947211 is a prime.

Together with 2947211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2947211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473606 + 1473607.

It is an arithmetic number, because the mean of its divisors is an integer number (1473607).

2^2947213 is an apocalyptic number.

It is an amenable number.

2947213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947213 is an equidigital number, since it uses as much as digits as its factorization.

2947213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 2947213 is about 1716.7448849494. The cubic root of 2947213 is about 143.3740350728.

It can be divided in two parts, 2947 and 213, that added together give a triangular number (3160 = T₇₉).

The spelling of 2947213 in words is "two million, nine hundred forty-seven thousand, two hundred thirteen".