5171778 has 12 divisors (see below), whose sum is σ = 11205558. Its totient is φ = 1723920.

The previous prime is 5171753. The next prime is 5171779. The reversal of 5171778 is 8771715.

It can be written as a sum of positive squares in only one way, i.e., 2634129 + 2537649 = 1623^2 + 1593^2 .

It is not an unprimeable number, because it can be changed into a prime (5171779) 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 5 ways as a sum of consecutive naturals, for example, 143643 + ... + 143678.

Almost surely, 2^5171778 is an apocalyptic number.

5171778 is an abundant number, since it is smaller than the sum of its proper divisors (6033780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5171778 is a wasteful number, since it uses less digits than its factorization.

5171778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287329 (or 287326 counting only the distinct ones).

The product of its digits is 13720, while the sum is 36.

The square root of 5171778 is about 2274.1543483238. The cubic root of 5171778 is about 172.9338292605.

The spelling of 5171778 in words is "five million, one hundred seventy-one thousand, seven hundred seventy-eight".