2991684 has 36 divisors (see below), whose sum is σ = 7202832. Its totient is φ = 966240.

The previous prime is 2991673. The next prime is 2991701. The reversal of 2991684 is 4861992.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44619 + ... + 44685.

2^2991684 is an apocalyptic number.

It is an amenable number.

2991684 is an abundant number, since it is smaller than the sum of its proper divisors (4211148).

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

2991684 is a wasteful number, since it uses less digits than its factorization.

2991684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 133 counting only the distinct ones).

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

The square root of 2991684 is about 1729.6485192085. The cubic root of 2991684 is about 144.0915698447.

The spelling of 2991684 in words is "two million, nine hundred ninety-one thousand, six hundred eighty-four".