5978999 has 4 divisors (see below), whose sum is σ = 6438936. Its totient is φ = 5519064.

The previous prime is 5978993. The next prime is 5979007. The reversal of 5978999 is 9998795.

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 5978999 - 2¹⁶ = 5913463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5978993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229949 + ... + 229974.

It is an arithmetic number, because the mean of its divisors is an integer number (1609734).

Almost surely, 2^5978999 is an apocalyptic number.

5978999 is a deficient number, since it is larger than the sum of its proper divisors (459937).

5978999 is a wasteful number, since it uses less digits than its factorization.

5978999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459936.

The product of its digits is 1837080, while the sum is 56.

The square root of 5978999 is about 2445.1991738916. The cubic root of 5978999 is about 181.4998039496.

The spelling of 5978999 in words is "five million, nine hundred seventy-eight thousand, nine hundred ninety-nine".