2493947 has 2 divisors, whose sum is σ = 2493948. Its totient is φ = 2493946.

The previous prime is 2493943. The next prime is 2493949. The reversal of 2493947 is 7493942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2493947 - 2² = 2493943 is a prime.

Together with 2493949, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2493947.

It is not a weakly prime, because it can be changed into another prime (2493943) 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, 1246973 + 1246974.

It is an arithmetic number, because the mean of its divisors is an integer number (1246974).

2^2493947 is an apocalyptic number.

2493947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493947 is an equidigital number, since it uses as much as digits as its factorization.

2493947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 2493947 is about 1579.2235433909. The cubic root of 2493947 is about 135.6112565091.

The spelling of 2493947 in words is "two million, four hundred ninety-three thousand, nine hundred forty-seven".