2991982 has 8 divisors (see below), whose sum is σ = 5129136. Its totient is φ = 1282272.

The previous prime is 2991971. The next prime is 2992007. The reversal of 2991982 is 2891992.

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, 106843 + ... + 106870.

It is an arithmetic number, because the mean of its divisors is an integer number (641142).

2^2991982 is an apocalyptic number.

2991982 is a deficient number, since it is larger than the sum of its proper divisors (2137154).

2991982 is a wasteful number, since it uses less digits than its factorization.

2991982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213722.

The product of its digits is 23328, while the sum is 40.

The square root of 2991982 is about 1729.7346617328. The cubic root of 2991982 is about 144.0963539799.

The spelling of 2991982 in words is "two million, nine hundred ninety-one thousand, nine hundred eighty-two".