2724091 has 4 divisors (see below), whose sum is σ = 2748312. Its totient is φ = 2699872.

The previous prime is 2724079. The next prime is 2724109. The reversal of 2724091 is 1904272.

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 2724091 - 2⁹ = 2723579 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2724031) 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, 11941 + ... + 12166.

It is an arithmetic number, because the mean of its divisors is an integer number (687078).

2^2724091 is an apocalyptic number.

2724091 is a deficient number, since it is larger than the sum of its proper divisors (24221).

2724091 is a wasteful number, since it uses less digits than its factorization.

2724091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24220.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2724091 is about 1650.4820507961. The cubic root of 2724091 is about 139.6605893755.

The spelling of 2724091 in words is "two million, seven hundred twenty-four thousand, ninety-one".