5178399 has 8 divisors (see below), whose sum is σ = 6918912. Its totient is φ = 3445080.

The previous prime is 5178391. The next prime is 5178403. The reversal of 5178399 is 9938715.

It is a happy number.

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

It is not a de Polignac number, because 5178399 - 2³ = 5178391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5178399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178391) 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 7 ways as a sum of consecutive naturals, for example, 202 + ... + 3224.

It is an arithmetic number, because the mean of its divisors is an integer number (864864).

Almost surely, 2^5178399 is an apocalyptic number.

5178399 is a deficient number, since it is larger than the sum of its proper divisors (1740513).

5178399 is a wasteful number, since it uses less digits than its factorization.

5178399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597.

The product of its digits is 68040, while the sum is 42.

The square root of 5178399 is about 2275.6095886597. The cubic root of 5178399 is about 173.0075954209.

The spelling of 5178399 in words is "five million, one hundred seventy-eight thousand, three hundred ninety-nine".