2897551 has 4 divisors (see below), whose sum is σ = 2901600. Its totient is φ = 2893504.

The previous prime is 2897533. The next prime is 2897579. The reversal of 2897551 is 1557982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2897551 - 2⁷ = 2897423 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2897551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (725400).

2^2897551 is an apocalyptic number.

2897551 is a deficient number, since it is larger than the sum of its proper divisors (4049).

2897551 is an equidigital number, since it uses as much as digits as its factorization.

2897551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048.

The product of its digits is 25200, while the sum is 37.

The square root of 2897551 is about 1702.2194335631. The cubic root of 2897551 is about 142.5641611141.

It can be divided in two parts, 28 and 97551, that added together give a palindrome (97579).

The spelling of 2897551 in words is "two million, eight hundred ninety-seven thousand, five hundred fifty-one".