2861994 has 16 divisors (see below), whose sum is σ = 5857632. Its totient is φ = 931728.

The previous prime is 2861977. The next prime is 2862011. The reversal of 2861994 is 4991682.

It is an interprime number because it is at equal distance from previous prime (2861977) and next prime (2862011).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5289 + ... + 5804.

It is an arithmetic number, because the mean of its divisors is an integer number (366102).

2^2861994 is an apocalyptic number.

2861994 is an abundant number, since it is smaller than the sum of its proper divisors (2995638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2861994 is a wasteful number, since it uses less digits than its factorization.

2861994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11141.

The product of its digits is 31104, while the sum is 39.

The square root of 2861994 is about 1691.7428882664. The cubic root of 2861994 is about 141.9786055184.

The spelling of 2861994 in words is "two million, eight hundred sixty-one thousand, nine hundred ninety-four".