5178427 has 4 divisors (see below), whose sum is σ = 5403600. Its totient is φ = 4953256.

The previous prime is 5178419. The next prime is 5178487. The reversal of 5178427 is 7248715.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5178427 - 2³ = 5178419 is a prime.

It is a super-2 number, since 2×5178427² = 53632212388658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5178392 and 5178401.

It is not an unprimeable number, because it can be changed into a prime (5178487) 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, 112552 + ... + 112597.

It is an arithmetic number, because the mean of its divisors is an integer number (1350900).

Almost surely, 2^5178427 is an apocalyptic number.

5178427 is a deficient number, since it is larger than the sum of its proper divisors (225173).

5178427 is a wasteful number, since it uses less digits than its factorization.

5178427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225172.

The product of its digits is 15680, while the sum is 34.

The square root of 5178427 is about 2275.6157408491. The cubic root of 5178427 is about 173.0079072421.

The spelling of 5178427 in words is "five million, one hundred seventy-eight thousand, four hundred twenty-seven".