2549447 has 2 divisors, whose sum is σ = 2549448. Its totient is φ = 2549446.

The previous prime is 2549431. The next prime is 2549453. The reversal of 2549447 is 7449452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2549447 - 2⁴ = 2549431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2549647) 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, 1274723 + 1274724.

It is an arithmetic number, because the mean of its divisors is an integer number (1274724).

2^2549447 is an apocalyptic number.

2549447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549447 is an equidigital number, since it uses as much as digits as its factorization.

2549447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 2549447 is about 1596.6987818621. The cubic root of 2549447 is about 136.6098441815.

The spelling of 2549447 in words is "two million, five hundred forty-nine thousand, four hundred forty-seven".