2897985 has 16 divisors (see below), whose sum is σ = 4745664. Its totient is φ = 1509312.

The previous prime is 2897981. The next prime is 2897989. The reversal of 2897985 is 5897982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2897981) and next prime (2897989).

It is not a de Polignac number, because 2897985 - 2² = 2897981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2897981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602 + ... + 2891.

It is an arithmetic number, because the mean of its divisors is an integer number (296604).

2^2897985 is an apocalyptic number.

It is an amenable number.

2897985 is a deficient number, since it is larger than the sum of its proper divisors (1847679).

2897985 is a wasteful number, since it uses less digits than its factorization.

2897985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544.

The product of its digits is 362880, while the sum is 48.

The square root of 2897985 is about 1702.3469094165. The cubic root of 2897985 is about 142.5712785910.

The spelling of 2897985 in words is "two million, eight hundred ninety-seven thousand, nine hundred eighty-five".