2947249 has 2 divisors, whose sum is σ = 2947250. Its totient is φ = 2947248.

The previous prime is 2947213. The next prime is 2947271. The reversal of 2947249 is 9427492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2537649 + 409600 = 1593^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947249 - 2¹⁵ = 2914481 is a prime.

2947249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2947649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473624 + 1473625.

It is an arithmetic number, because the mean of its divisors is an integer number (1473625).

2^2947249 is an apocalyptic number.

It is an amenable number.

2947249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947249 is an equidigital number, since it uses as much as digits as its factorization.

2947249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 2947249 is about 1716.7553698766. The cubic root of 2947249 is about 143.3746188384.

It can be divided in two parts, 29 and 47249, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 2947249 in words is "two million, nine hundred forty-seven thousand, two hundred forty-nine".