2880655 has 4 divisors (see below), whose sum is σ = 3456792. Its totient is φ = 2304520.

The previous prime is 2880649. The next prime is 2880659. The reversal of 2880655 is 5560882.

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

It is a de Polignac number, because none of the positive numbers 2^k-2880655 is a prime.

It is a Duffinian number.

2880655 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2880655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2880659) 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, 288061 + ... + 288070.

It is an arithmetic number, because the mean of its divisors is an integer number (864198).

2^2880655 is an apocalyptic number.

2880655 is a deficient number, since it is larger than the sum of its proper divisors (576137).

2880655 is an equidigital number, since it uses as much as digits as its factorization.

2880655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576136.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2880655 is about 1697.2492451022. The cubic root of 2880655 is about 142.2865173116.

The spelling of 2880655 in words is "two million, eight hundred eighty thousand, six hundred fifty-five".