2984991 has 4 divisors (see below), whose sum is σ = 3979992. Its totient is φ = 1989992.

The previous prime is 2984977. The next prime is 2985001. The reversal of 2984991 is 1994892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2984991 - 2⁹ = 2984479 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2984921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497496 + ... + 497501.

It is an arithmetic number, because the mean of its divisors is an integer number (994998).

2^2984991 is an apocalyptic number.

2984991 is a deficient number, since it is larger than the sum of its proper divisors (995001).

2984991 is an equidigital number, since it uses as much as digits as its factorization.

2984991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995000.

The product of its digits is 46656, while the sum is 42.

The square root of 2984991 is about 1727.7126497193. The cubic root of 2984991 is about 143.9840356530.

Subtracting from 2984991 its reverse (1994892), we obtain a palindrome (990099).

The spelling of 2984991 in words is "two million, nine hundred eighty-four thousand, nine hundred ninety-one".