2861996 has 6 divisors (see below), whose sum is σ = 5008500. Its totient is φ = 1430996.

The previous prime is 2861977. The next prime is 2862011. The reversal of 2861996 is 6991682.

It is a super-2 number, since 2×2861996² = 16382042208032, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 357746 + ... + 357753.

It is an arithmetic number, because the mean of its divisors is an integer number (834750).

2^2861996 is an apocalyptic number.

It is an amenable number.

2861996 is a deficient number, since it is larger than the sum of its proper divisors (2146504).

2861996 is a wasteful number, since it uses less digits than its factorization.

2861996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715503 (or 715501 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 2861996 is about 1691.7434793727. The cubic root of 2861996 is about 141.9786385906.

The spelling of 2861996 in words is "two million, eight hundred sixty-one thousand, nine hundred ninety-six".