5997778 has 8 divisors (see below), whose sum is σ = 9081072. Its totient is φ = 2970756.

The previous prime is 5997743. The next prime is 5997781. The reversal of 5997778 is 8777995.

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

It is an unprimeable number.

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, 13800 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (1135134).

Almost surely, 2^5997778 is an apocalyptic number.

5997778 is a deficient number, since it is larger than the sum of its proper divisors (3083294).

5997778 is a wasteful number, since it uses less digits than its factorization.

5997778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136.

The product of its digits is 1111320, while the sum is 52.

The square root of 5997778 is about 2449.0361369322. The cubic root of 5997778 is about 181.6896251694.

The spelling of 5997778 in words is "five million, nine hundred ninety-seven thousand, seven hundred seventy-eight".