2998691 has 4 divisors (see below), whose sum is σ = 3068472. Its totient is φ = 2928912.

The previous prime is 2998679. The next prime is 2998693. The reversal of 2998691 is 1968992.

2998691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2998691 - 2¹⁰ = 2997667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2998693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34826 + ... + 34911.

It is an arithmetic number, because the mean of its divisors is an integer number (767118).

2^2998691 is an apocalyptic number.

2998691 is a deficient number, since it is larger than the sum of its proper divisors (69781).

2998691 is an equidigital number, since it uses as much as digits as its factorization.

2998691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69780.

The product of its digits is 69984, while the sum is 44.

The square root of 2998691 is about 1731.6728905888. The cubic root of 2998691 is about 144.2039772603.

The spelling of 2998691 in words is "two million, nine hundred ninety-eight thousand, six hundred ninety-one".