2884391 has 4 divisors (see below), whose sum is σ = 2954784. Its totient is φ = 2814000.

The previous prime is 2884381. The next prime is 2884403. The reversal of 2884391 is 1934882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1934882 = 2 ⋅967441.

It is a cyclic number.

It is not a de Polignac number, because 2884391 - 2⁶ = 2884327 is a prime.

It is a super-2 number, since 2×2884391² = 16639422881762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2884351) 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, 35135 + ... + 35216.

It is an arithmetic number, because the mean of its divisors is an integer number (738696).

2^2884391 is an apocalyptic number.

2884391 is a deficient number, since it is larger than the sum of its proper divisors (70393).

2884391 is an equidigital number, since it uses as much as digits as its factorization.

2884391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70392.

The product of its digits is 13824, while the sum is 35.

The square root of 2884391 is about 1698.3494928901. The cubic root of 2884391 is about 142.3480024931.

The spelling of 2884391 in words is "two million, eight hundred eighty-four thousand, three hundred ninety-one".