2724691 has 4 divisors (see below), whose sum is σ = 2728000. Its totient is φ = 2721384.

The previous prime is 2724661. The next prime is 2724697. The reversal of 2724691 is 1964272.

2724691 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2724691 - 2⁷ = 2724563 is a prime.

It is a Duffinian number.

2724691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2724697) 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, 670 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (682000).

2^2724691 is an apocalyptic number.

2724691 is a deficient number, since it is larger than the sum of its proper divisors (3309).

2724691 is a wasteful number, since it uses less digits than its factorization.

2724691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308.

The product of its digits is 6048, while the sum is 31.

The square root of 2724691 is about 1650.6638058672. The cubic root of 2724691 is about 139.6708423617.

The spelling of 2724691 in words is "two million, seven hundred twenty-four thousand, six hundred ninety-one".