2797720 has 32 divisors (see below), whose sum is σ = 6570720. Its totient is φ = 1070080.

The previous prime is 2797699. The next prime is 2797723. The reversal of 2797720 is 277972.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (205335).

2^2797720 is an apocalyptic number.

2797720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2797720 is an abundant number, since it is smaller than the sum of its proper divisors (3773000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2797720 is a wasteful number, since it uses less digits than its factorization.

2797720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 2797720 is about 1672.6386340151. The cubic root of 2797720 is about 140.9077074881.

The spelling of 2797720 in words is "two million, seven hundred ninety-seven thousand, seven hundred twenty".