7958449 has 4 divisors (see below), whose sum is σ = 7965936. Its totient is φ = 7950964.

The previous prime is 7958443. The next prime is 7958459. The reversal of 7958449 is 9448597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9448597 = 439 ⋅21523.

It is a cyclic number.

It is not a de Polignac number, because 7958449 - 2¹¹ = 7956401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7958399 and 7958408.

It is not an unprimeable number, because it can be changed into a prime (7958443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819 + ... + 4384.

It is an arithmetic number, because the mean of its divisors is an integer number (1991484).

Almost surely, 2^7958449 is an apocalyptic number.

It is an amenable number.

7958449 is a deficient number, since it is larger than the sum of its proper divisors (7487).

7958449 is a wasteful number, since it uses less digits than its factorization.

7958449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486.

The product of its digits is 362880, while the sum is 46.

The square root of 7958449 is about 2821.0723138551. The cubic root of 7958449 is about 199.6531404567.

The spelling of 7958449 in words is "seven million, nine hundred fifty-eight thousand, four hundred forty-nine".