2789172 has 18 divisors (see below), whose sum is σ = 7050498. Its totient is φ = 929712.

The previous prime is 2789167. The next prime is 2789177. The reversal of 2789172 is 2719872.

2789172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2789167) and next prime (2789177).

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 86436 = 1644^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 77477 = 2789172 / (2 + 7 + 8 + 9 + 1 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38703 + ... + 38774.

2^2789172 is an apocalyptic number.

It is an amenable number.

2789172 is an abundant number, since it is smaller than the sum of its proper divisors (4261326).

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

2789172 is a wasteful number, since it uses less digits than its factorization.

2789172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77487 (or 77482 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2789172 is about 1670.0814351402. The cubic root of 2789172 is about 140.7640538618.

2789172 divided by its sum of digits (36) gives a palindrome (77477).

The spelling of 2789172 in words is "two million, seven hundred eighty-nine thousand, one hundred seventy-two".