2797891 has 4 divisors (see below), whose sum is σ = 2894400. Its totient is φ = 2701384.

The previous prime is 2797889. The next prime is 2797901. The reversal of 2797891 is 1987972.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2797891 - 2¹ = 2797889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2797841) 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, 48211 + ... + 48268.

It is an arithmetic number, because the mean of its divisors is an integer number (723600).

2^2797891 is an apocalyptic number.

2797891 is a deficient number, since it is larger than the sum of its proper divisors (96509).

2797891 is an equidigital number, since it uses as much as digits as its factorization.

2797891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96508.

The product of its digits is 63504, while the sum is 43.

The square root of 2797891 is about 1672.6897500732. The cubic root of 2797891 is about 140.9105782456.

The spelling of 2797891 in words is "two million, seven hundred ninety-seven thousand, eight hundred ninety-one".