2797281 has 16 divisors (see below), whose sum is σ = 4169920. Its totient is φ = 1853280.

The previous prime is 2797273. The next prime is 2797303. The reversal of 2797281 is 1827972.

It is not a de Polignac number, because 2797281 - 2³ = 2797273 is a prime.

It is a super-3 number, since 3×2797281³ = 65664333602312817123, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2797211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8286 + ... + 8616.

It is an arithmetic number, because the mean of its divisors is an integer number (260620).

2^2797281 is an apocalyptic number.

It is an amenable number.

2797281 is a deficient number, since it is larger than the sum of its proper divisors (1372639).

2797281 is a wasteful number, since it uses less digits than its factorization.

2797281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 647 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2797281 is about 1672.5073990868. The cubic root of 2797281 is about 140.9003369960.

The spelling of 2797281 in words is "two million, seven hundred ninety-seven thousand, two hundred eighty-one".