2770243 has 4 divisors (see below), whose sum is σ = 3166000. Its totient is φ = 2374488.

The previous prime is 2770241. The next prime is 2770259. The reversal of 2770243 is 3420772.

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 2770243 - 2¹ = 2770241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2770241) 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, 197868 + ... + 197881.

It is an arithmetic number, because the mean of its divisors is an integer number (791500).

2^2770243 is an apocalyptic number.

2770243 is a deficient number, since it is larger than the sum of its proper divisors (395757).

2770243 is an equidigital number, since it uses as much as digits as its factorization.

2770243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395756.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 2770243 is about 1664.4046983832. The cubic root of 2770243 is about 140.4448942342. Note that the first 3 decimals are identical.

The spelling of 2770243 in words is "two million, seven hundred seventy thousand, two hundred forty-three".