2897091 has 12 divisors (see below), whose sum is σ = 4200768. Its totient is φ = 1923984.

The previous prime is 2897087. The next prime is 2897093. The reversal of 2897091 is 1907982.

It is a happy number.

It is not a de Polignac number, because 2897091 - 2² = 2897087 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2897093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2926 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (350064).

2^2897091 is an apocalyptic number.

2897091 is a deficient number, since it is larger than the sum of its proper divisors (1303677).

2897091 is a wasteful number, since it uses less digits than its factorization.

2897091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2897091 is about 1702.0843104852. The cubic root of 2897091 is about 142.5566164686.

The spelling of 2897091 in words is "two million, eight hundred ninety-seven thousand, ninety-one".