2887997 has 4 divisors (see below), whose sum is σ = 3300576. Its totient is φ = 2475420.

The previous prime is 2887993. The next prime is 2888021. The reversal of 2887997 is 7997882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2887997 - 2² = 2887993 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 (2887993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206279 + ... + 206292.

It is an arithmetic number, because the mean of its divisors is an integer number (825144).

2^2887997 is an apocalyptic number.

It is an amenable number.

2887997 is a deficient number, since it is larger than the sum of its proper divisors (412579).

2887997 is an equidigital number, since it uses as much as digits as its factorization.

2887997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412578.

The product of its digits is 508032, while the sum is 50.

The square root of 2887997 is about 1699.4107802412. The cubic root of 2887997 is about 142.4072978680.

The spelling of 2887997 in words is "two million, eight hundred eighty-seven thousand, nine hundred ninety-seven".