5999980 has 48 divisors (see below), whose sum is σ = 15253056. Its totient is φ = 1935360.

The previous prime is 5999947. The next prime is 5999993. The reversal of 5999980 is 899995.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1120 + ... + 3640.

It is an arithmetic number, because the mean of its divisors is an integer number (317772).

Almost surely, 2^5999980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5999980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7626528).

5999980 is an abundant number, since it is smaller than the sum of its proper divisors (9253076).

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

5999980 is a wasteful number, since it uses less digits than its factorization.

5999980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2552 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 49.

The square root of 5999980 is about 2449.4856602969. The cubic root of 5999980 is about 181.7118573807.

The spelling of 5999980 in words is "five million, nine hundred ninety-nine thousand, nine hundred eighty".