2782079 has 4 divisors (see below), whose sum is σ = 2787120. Its totient is φ = 2777040.

The previous prime is 2782069. The next prime is 2782081. The reversal of 2782079 is 9702872.

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 2782079 - 2⁴ = 2782063 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 (2782009) 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, 1574 + ... + 2835.

It is an arithmetic number, because the mean of its divisors is an integer number (696780).

2^2782079 is an apocalyptic number.

2782079 is a deficient number, since it is larger than the sum of its proper divisors (5041).

2782079 is an equidigital number, since it uses as much as digits as its factorization.

2782079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2782079 is about 1667.9565342059. The cubic root of 2782079 is about 140.6446292928.

The spelling of 2782079 in words is "two million, seven hundred eighty-two thousand, seventy-nine".