7919449 has 2 divisors, whose sum is σ = 7919450. Its totient is φ = 7919448.

The previous prime is 7919413. The next prime is 7919459. The reversal of 7919449 is 9449197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7463824 + 455625 = 2732^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 7919449 - 2¹¹ = 7917401 is a prime.

7919449 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7919459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3959724 + 3959725.

It is an arithmetic number, because the mean of its divisors is an integer number (3959725).

Almost surely, 2^7919449 is an apocalyptic number.

It is an amenable number.

7919449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7919449 is an equidigital number, since it uses as much as digits as its factorization.

7919449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 7919449 is about 2814.1515595291. The cubic root of 7919449 is about 199.3264760402.

The spelling of 7919449 in words is "seven million, nine hundred nineteen thousand, four hundred forty-nine".