2897866 has 8 divisors (see below), whose sum is σ = 4418244. Its totient is φ = 1425120.

The previous prime is 2897833. The next prime is 2897887. The reversal of 2897866 is 6687982.

It can be written as a sum of positive squares in 2 ways, for example, as 2792241 + 105625 = 1671^2 + 325^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11755 + ... + 11998.

2^2897866 is an apocalyptic number.

2897866 is a deficient number, since it is larger than the sum of its proper divisors (1520378).

2897866 is a wasteful number, since it uses less digits than its factorization.

2897866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23816.

The product of its digits is 290304, while the sum is 46.

The square root of 2897866 is about 1702.3119573098. The cubic root of 2897866 is about 142.5693270955.

The spelling of 2897866 in words is "two million, eight hundred ninety-seven thousand, eight hundred sixty-six".