2788029 has 6 divisors (see below), whose sum is σ = 4027166. Its totient is φ = 1858680.

The previous prime is 2788021. The next prime is 2788033. The reversal of 2788029 is 9208872.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 492804 = 1515^2 + 702^2 .

It is not a de Polignac number, because 2788029 - 2³ = 2788021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2787984 and 2788002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154882 + ... + 154899.

2^2788029 is an apocalyptic number.

It is an amenable number.

2788029 is a deficient number, since it is larger than the sum of its proper divisors (1239137).

2788029 is a wasteful number, since it uses less digits than its factorization.

2788029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309787 (or 309784 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2788029 is about 1669.7392011928. The cubic root of 2788029 is about 140.7448229100.

The spelling of 2788029 in words is "two million, seven hundred eighty-eight thousand, twenty-nine".