7892449 has 2 divisors, whose sum is σ = 7892450. Its totient is φ = 7892448.

The previous prime is 7892441. The next prime is 7892453. The reversal of 7892449 is 9442987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3972049 + 3920400 = 1993^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 7892449 - 2³ = 7892441 is a prime.

It is not a weakly prime, because it can be changed into another prime (7892441) 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, 3946224 + 3946225.

It is an arithmetic number, because the mean of its divisors is an integer number (3946225).

Almost surely, 2^7892449 is an apocalyptic number.

It is an amenable number.

7892449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7892449 is an equidigital number, since it uses as much as digits as its factorization.

7892449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 7892449 is about 2809.3502807589. The cubic root of 7892449 is about 199.0996950024.

The spelling of 7892449 in words is "seven million, eight hundred ninety-two thousand, four hundred forty-nine".