2788101 has 10 divisors (see below), whose sum is σ = 4165062. Its totient is φ = 1858680.

The previous prime is 2788091. The next prime is 2788133. The reversal of 2788101 is 1018872.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 15876 = 1665^2 + 126^2 .

It is not a de Polignac number, because 2788101 - 2⁵ = 2788069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788301) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17130 + ... + 17291.

2^2788101 is an apocalyptic number.

It is an amenable number.

2788101 is a deficient number, since it is larger than the sum of its proper divisors (1376961).

2788101 is an equidigital number, since it uses as much as digits as its factorization.

2788101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34433 (or 34424 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2788101 is about 1669.7607613068. The cubic root of 2788101 is about 140.7460344637.

The spelling of 2788101 in words is "two million, seven hundred eighty-eight thousand, one hundred one".