2943986 has 8 divisors (see below), whose sum is σ = 4510080. Its totient is φ = 1440628.

The previous prime is 2943971. The next prime is 2944003. The reversal of 2943986 is 6893492.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15566 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (563760).

2^2943986 is an apocalyptic number.

2943986 is a deficient number, since it is larger than the sum of its proper divisors (1566094).

2943986 is a wasteful number, since it uses less digits than its factorization.

2943986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31368.

The product of its digits is 93312, while the sum is 41.

The square root of 2943986 is about 1715.8047674488. The cubic root of 2943986 is about 143.3216876543.

The spelling of 2943986 in words is "two million, nine hundred forty-three thousand, nine hundred eighty-six".