2997689 has 2 divisors, whose sum is σ = 2997690. Its totient is φ = 2997688.

The previous prime is 2997667. The next prime is 2997719. The reversal of 2997689 is 9867992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1605289 + 1392400 = 1267^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 2997689 - 2²⁰ = 1949113 is a prime.

It is a super-2 number, since 2×2997689² = 17972278681442, 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 (2997619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498844 + 1498845.

It is an arithmetic number, because the mean of its divisors is an integer number (1498845).

2^2997689 is an apocalyptic number.

It is an amenable number.

2997689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2997689 is an equidigital number, since it uses as much as digits as its factorization.

2997689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 2997689 is about 1731.3835508055. The cubic root of 2997689 is about 144.1879137533.

The spelling of 2997689 in words is "two million, nine hundred ninety-seven thousand, six hundred eighty-nine".