2722897 has 4 divisors (see below), whose sum is σ = 2816820. Its totient is φ = 2628976.

The previous prime is 2722891. The next prime is 2722913. The reversal of 2722897 is 7982272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 2076481 = 804^2 + 1441^2 .

It is a cyclic number.

It is not a de Polignac number, because 2722897 - 2¹¹ = 2720849 is a prime.

It is a Duffinian number.

2722897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2722891) 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, 46918 + ... + 46975.

It is an arithmetic number, because the mean of its divisors is an integer number (704205).

2^2722897 is an apocalyptic number.

It is an amenable number.

2722897 is a deficient number, since it is larger than the sum of its proper divisors (93923).

2722897 is an equidigital number, since it uses as much as digits as its factorization.

2722897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93922.

The product of its digits is 28224, while the sum is 37.

The square root of 2722897 is about 1650.1202986449. The cubic root of 2722897 is about 139.6401814531.

The spelling of 2722897 in words is "two million, seven hundred twenty-two thousand, eight hundred ninety-seven".