7873449 has 4 divisors (see below), whose sum is σ = 10497936. Its totient is φ = 5248964.

The previous prime is 7873447. The next prime is 7873451. The reversal of 7873449 is 9443787.

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 an emirpimes, since its reverse is a distinct semiprime: 9443787 = 3 ⋅3147929.

It is an interprime number because it is at equal distance from previous prime (7873447) and next prime (7873451).

It is a cyclic number.

It is not a de Polignac number, because 7873449 - 2¹ = 7873447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7873449.

It is not an unprimeable number, because it can be changed into a prime (7873447) 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, 1312239 + ... + 1312244.

It is an arithmetic number, because the mean of its divisors is an integer number (2624484).

Almost surely, 2^7873449 is an apocalyptic number.

It is an amenable number.

7873449 is a deficient number, since it is larger than the sum of its proper divisors (2624487).

7873449 is a wasteful number, since it uses less digits than its factorization.

7873449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624486.

The product of its digits is 169344, while the sum is 42.

The square root of 7873449 is about 2805.9666783481. The cubic root of 7873449 is about 198.9397981240.

The spelling of 7873449 in words is "seven million, eight hundred seventy-three thousand, four hundred forty-nine".