7878343 has 8 divisors (see below), whose sum is σ = 8891280. Its totient is φ = 6914880.

The previous prime is 7878341. The next prime is 7878347. The reversal of 7878343 is 3438787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7878343 - 2¹ = 7878341 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7878296 and 7878305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878341) 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 in 7 ways as a sum of consecutive naturals, for example, 12030 + ... + 12667.

It is an arithmetic number, because the mean of its divisors is an integer number (1111410).

Almost surely, 2^7878343 is an apocalyptic number.

7878343 is a deficient number, since it is larger than the sum of its proper divisors (1012937).

7878343 is a wasteful number, since it uses less digits than its factorization.

7878343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24737.

The product of its digits is 112896, while the sum is 40.

The square root of 7878343 is about 2806.8386131019. The cubic root of 7878343 is about 198.9810087682.

The spelling of 7878343 in words is "seven million, eight hundred seventy-eight thousand, three hundred forty-three".