2788065 has 48 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 1243008.

The previous prime is 2788057. The next prime is 2788069. The reversal of 2788065 is 5608872.

It is not a de Polignac number, because 2788065 - 2³ = 2788057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2788069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16612 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^2788065 is an apocalyptic number.

It is an amenable number.

2788065 is an abundant number, since it is smaller than the sum of its proper divisors (2872863).

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

2788065 is a wasteful number, since it uses less digits than its factorization.

2788065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2788065 is about 1669.7499812846. The cubic root of 2788065 is about 140.7454286895.

The spelling of 2788065 in words is "two million, seven hundred eighty-eight thousand, sixty-five".