2720784827 has 4 divisors (see below), whose sum is σ = 2722389816. Its totient is φ = 2719179840.

The previous prime is 2720784821. The next prime is 2720784841. The reversal of 2720784827 is 7284870272.

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 2720784827 - 2⁴ = 2720784811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720784821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799949 + ... + 803342.

It is an arithmetic number, because the mean of its divisors is an integer number (680597454).

Almost surely, 2^2720784827 is an apocalyptic number.

2720784827 is a deficient number, since it is larger than the sum of its proper divisors (1604989).

2720784827 is a wasteful number, since it uses less digits than its factorization.

2720784827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604988.

The product of its (nonzero) digits is 702464, while the sum is 47.

The square root of 2720784827 is about 52161.1428843349. The cubic root of 2720784827 is about 1396.0406544415.

The spelling of 2720784827 in words is "two billion, seven hundred twenty million, seven hundred eighty-four thousand, eight hundred twenty-seven".