5731778 has 16 divisors (see below), whose sum is σ = 9366840. Its totient is φ = 2614656.

The previous prime is 5731777. The next prime is 5731793. The reversal of 5731778 is 8771375.

It can be written as a sum of positive squares in 4 ways, for example, as 3052009 + 2679769 = 1747^2 + 1637^2 .

It is not an unprimeable number, because it can be changed into a prime (5731777) 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, 1076 + ... + 3552.

Almost surely, 2^5731778 is an apocalyptic number.

5731778 is a deficient number, since it is larger than the sum of its proper divisors (3635062).

5731778 is a wasteful number, since it uses less digits than its factorization.

5731778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its digits is 41160, while the sum is 38.

The square root of 5731778 is about 2394.1131969896. The cubic root of 5731778 is about 178.9629460457.

The spelling of 5731778 in words is "five million, seven hundred thirty-one thousand, seven hundred seventy-eight".