3001997 has 4 divisors (see below), whose sum is σ = 3021276. Its totient is φ = 2982720.

The previous prime is 3001991. The next prime is 3002003. The reversal of 3001997 is 7991003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7991003 = 17 ⋅470059.

It is an interprime number because it is at equal distance from previous prime (3001991) and next prime (3002003).

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 1190281 = 1346^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 3001997 - 2¹² = 2997901 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 (3001991) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9404 + ... + 9717.

It is an arithmetic number, because the mean of its divisors is an integer number (755319).

Almost surely, 2^3001997 is an apocalyptic number.

It is an amenable number.

3001997 is a deficient number, since it is larger than the sum of its proper divisors (19279).

3001997 is a wasteful number, since it uses less digits than its factorization.

3001997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19278.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 3001997 is about 1732.6271959080. The cubic root of 3001997 is about 144.2569518480.

The spelling of 3001997 in words is "three million, one thousand, nine hundred ninety-seven".