2881819 has 8 divisors (see below), whose sum is σ = 3004128. Its totient is φ = 2761920.

The previous prime is 2881799. The next prime is 2881859. The reversal of 2881819 is 9181882.

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

It is a cyclic number.

It is not a de Polignac number, because 2881819 - 2¹¹ = 2879771 is a prime.

It is a super-2 number, since 2×2881819² = 16609761497522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2881859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (375516).

2^2881819 is an apocalyptic number.

2881819 is a deficient number, since it is larger than the sum of its proper divisors (122309).

2881819 is a wasteful number, since it uses less digits than its factorization.

2881819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

The product of its digits is 9216, while the sum is 37.

The square root of 2881819 is about 1697.5921182663. The cubic root of 2881819 is about 142.3056795280.

The spelling of 2881819 in words is "two million, eight hundred eighty-one thousand, eight hundred nineteen".