3331997 has 2 divisors, whose sum is σ = 3331998. Its totient is φ = 3331996.

The previous prime is 3331981. The next prime is 3332039. The reversal of 3331997 is 7991333.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2343961 + 988036 = 1531^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 3331997 - 2⁴ = 3331981 is a prime.

It is a super-2 number, since 2×3331997² = 22204408016018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3331927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665998 + 1665999.

It is an arithmetic number, because the mean of its divisors is an integer number (1665999).

Almost surely, 2^3331997 is an apocalyptic number.

It is an amenable number.

3331997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3331997 is an equidigital number, since it uses as much as digits as its factorization.

3331997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309, while the sum is 35.

The square root of 3331997 is about 1825.3758517084. The cubic root of 3331997 is about 149.3601933819.

The spelling of 3331997 in words is "three million, three hundred thirty-one thousand, nine hundred ninety-seven".