2690791 has 4 divisors (see below), whose sum is σ = 2709000. Its totient is φ = 2672584.

The previous prime is 2690783. The next prime is 2690803. The reversal of 2690791 is 1970962.

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 2690791 - 2³ = 2690783 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 (2690711) 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, 8881 + ... + 9178.

It is an arithmetic number, because the mean of its divisors is an integer number (677250).

2^2690791 is an apocalyptic number.

2690791 is a deficient number, since it is larger than the sum of its proper divisors (18209).

2690791 is a wasteful number, since it uses less digits than its factorization.

2690791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18208.

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

The square root of 2690791 is about 1640.3630695672. The cubic root of 2690791 is about 139.0891721175.

It can be divided in two parts, 2690 and 791, that added together give a square (3481 = 59²).

The spelling of 2690791 in words is "two million, six hundred ninety thousand, seven hundred ninety-one".