7908449 has 4 divisors (see below), whose sum is σ = 8101380. Its totient is φ = 7715520.

The previous prime is 7908437. The next prime is 7908463. The reversal of 7908449 is 9448097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1456849 + 6451600 = 1207^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 7908449 - 2²⁰ = 6859873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 192889 = 7908449 / (7 + 9 + 0 + 8 + 4 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7908409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96404 + ... + 96485.

It is an arithmetic number, because the mean of its divisors is an integer number (2025345).

Almost surely, 2^7908449 is an apocalyptic number.

It is an amenable number.

7908449 is a deficient number, since it is larger than the sum of its proper divisors (192931).

7908449 is a wasteful number, since it uses less digits than its factorization.

7908449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192930.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 7908449 is about 2812.1964725104. The cubic root of 7908449 is about 199.2341460822.

The spelling of 7908449 in words is "seven million, nine hundred eight thousand, four hundred forty-nine".