2689897 has 8 divisors (see below), whose sum is σ = 3096000. Its totient is φ = 2289264.

The previous prime is 2689891. The next prime is 2689903. The reversal of 2689897 is 7989862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2689891) and next prime (2689903).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2689897 - 2³ = 2689889 is a prime.

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 2689897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (387000).

2^2689897 is an apocalyptic number.

It is an amenable number.

2689897 is a deficient number, since it is larger than the sum of its proper divisors (406103).

2689897 is a wasteful number, since it uses less digits than its factorization.

2689897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 435456, while the sum is 49.

The square root of 2689897 is about 1640.0905462809. The cubic root of 2689897 is about 139.0737665492.

The spelling of 2689897 in words is "two million, six hundred eighty-nine thousand, eight hundred ninety-seven".