2657897 has 16 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 2296320.

The previous prime is 2657887. The next prime is 2657911. The reversal of 2657897 is 7987562.

It is a cyclic number.

It is not a de Polignac number, because 2657897 - 2¹² = 2653801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2657867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27353 + ... + 27449.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

2^2657897 is an apocalyptic number.

It is an amenable number.

2657897 is a deficient number, since it is larger than the sum of its proper divisors (390295).

2657897 is a wasteful number, since it uses less digits than its factorization.

2657897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its digits is 211680, while the sum is 44.

The square root of 2657897 is about 1630.3057995358. The cubic root of 2657897 is about 138.5200742450.

The spelling of 2657897 in words is "two million, six hundred fifty-seven thousand, eight hundred ninety-seven".