2706991 has 4 divisors (see below), whose sum is σ = 3093712. Its totient is φ = 2320272.

The previous prime is 2706989. The next prime is 2707007. The reversal of 2706991 is 1996072.

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 2706991 - 2¹ = 2706989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2706971) 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, 193350 + ... + 193363.

It is an arithmetic number, because the mean of its divisors is an integer number (773428).

2^2706991 is an apocalyptic number.

2706991 is a deficient number, since it is larger than the sum of its proper divisors (386721).

2706991 is an equidigital number, since it uses as much as digits as its factorization.

2706991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386720.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 2706991 is about 1645.2935908220. The cubic root of 2706991 is about 139.3677441979.

The spelling of 2706991 in words is "two million, seven hundred six thousand, nine hundred ninety-one".