3021997 has 8 divisors (see below), whose sum is σ = 3373920. Its totient is φ = 2682960.

The previous prime is 3021989. The next prime is 3022027. The reversal of 3021997 is 7991203.

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

It is a cyclic number.

It is not a de Polignac number, because 3021997 - 2³ = 3021989 is a prime.

3021997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2722 + ... + 3667.

It is an arithmetic number, because the mean of its divisors is an integer number (421740).

Almost surely, 2^3021997 is an apocalyptic number.

It is an amenable number.

3021997 is a deficient number, since it is larger than the sum of its proper divisors (351923).

3021997 is a wasteful number, since it uses less digits than its factorization.

3021997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6443.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 3021997 is about 1738.3891969292. The cubic root of 3021997 is about 144.5766007896.

The spelling of 3021997 in words is "three million, twenty-one thousand, nine hundred ninety-seven".