5999990 has 8 divisors (see below), whose sum is σ = 10800000. Its totient is φ = 2399992.

The previous prime is 5999947. The next prime is 5999993. The reversal of 5999990 is 999995.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5999993) 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, 299990 + ... + 300009.

It is an arithmetic number, because the mean of its divisors is an integer number (1350000).

Almost surely, 2^5999990 is an apocalyptic number.

5999990 is a deficient number, since it is larger than the sum of its proper divisors (4800010).

5999990 is a wasteful number, since it uses less digits than its factorization.

5999990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600006.

The product of its (nonzero) digits is 295245, while the sum is 50.

The square root of 5999990 is about 2449.4877015409. The cubic root of 5999990 is about 181.7119583320.

The spelling of 5999990 in words is "five million, nine hundred ninety-nine thousand, nine hundred ninety".