5997990 has 16 divisors (see below), whose sum is σ = 14395248. Its totient is φ = 1599456.

The previous prime is 5997967. The next prime is 5998001. The reversal of 5997990 is 997995.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99937 + ... + 99996.

It is an arithmetic number, because the mean of its divisors is an integer number (899703).

Almost surely, 2^5997990 is an apocalyptic number.

5997990 is an abundant number, since it is smaller than the sum of its proper divisors (8397258).

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

5997990 is a wasteful number, since it uses less digits than its factorization.

5997990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199943.

The product of its (nonzero) digits is 229635, while the sum is 48.

The square root of 5997990 is about 2449.0794188838. The cubic root of 5997990 is about 181.6917658370.

The spelling of 5997990 in words is "five million, nine hundred ninety-seven thousand, nine hundred ninety".