2779345 has 8 divisors (see below), whose sum is σ = 3406464. Its totient is φ = 2175984.

The previous prime is 2779327. The next prime is 2779351. The reversal of 2779345 is 5439772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2779345 - 2⁹ = 2778833 is a prime.

It is a d-powerful number, because it can be written as 2³ + 7⁴ + 7⁷ + 9 + 3⁵ + 4² + 5⁹ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5679 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (425808).

2^2779345 is an apocalyptic number.

It is an amenable number.

2779345 is a deficient number, since it is larger than the sum of its proper divisors (627119).

2779345 is a wasteful number, since it uses less digits than its factorization.

2779345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11879.

The product of its digits is 52920, while the sum is 37.

The square root of 2779345 is about 1667.1367670350. The cubic root of 2779345 is about 140.5985428416.

The spelling of 2779345 in words is "two million, seven hundred seventy-nine thousand, three hundred forty-five".