2897172 has 36 divisors (see below), whose sum is σ = 7644000. Its totient is φ = 923472.

The previous prime is 2897171. The next prime is 2897173. The reversal of 2897172 is 2717982.

It is an interprime number because it is at equal distance from previous prime (2897171) and next prime (2897173).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2¹⁵ + 8³ + 9⁶ + 7⁶ + 1 + 7⁶ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922 + ... + 2577.

2^2897172 is an apocalyptic number.

It is an amenable number.

2897172 is an abundant number, since it is smaller than the sum of its proper divisors (4746828).

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

2897172 is a wasteful number, since it uses less digits than its factorization.

2897172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532 (or 3527 counting only the distinct ones).

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

The square root of 2897172 is about 1702.1081046749. The cubic root of 2897172 is about 142.5579450402.

The spelling of 2897172 in words is "two million, eight hundred ninety-seven thousand, one hundred seventy-two".