5998997 has 4 divisors (see below), whose sum is σ = 6145356. Its totient is φ = 5852640.

The previous prime is 5998987. The next prime is 5999009. The reversal of 5998997 is 7998995.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3129361 + 2869636 = 1769^2 + 1694^2 .

It is a cyclic number.

It is not a de Polignac number, because 5998997 - 2⁶ = 5998933 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 (5998907) 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, 73118 + ... + 73199.

It is an arithmetic number, because the mean of its divisors is an integer number (1536339).

Almost surely, 2^5998997 is an apocalyptic number.

It is an amenable number.

5998997 is a deficient number, since it is larger than the sum of its proper divisors (146359).

5998997 is a wasteful number, since it uses less digits than its factorization.

5998997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146358.

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

The square root of 5998997 is about 2449.2849977085. The cubic root of 5998997 is about 181.7019333192.

The spelling of 5998997 in words is "five million, nine hundred ninety-eight thousand, nine hundred ninety-seven".