2668697 has 6 divisors (see below), whose sum is σ = 2758554. Its totient is φ = 2581680.

The previous prime is 2668693. The next prime is 2668727. The reversal of 2668697 is 7968662.

It can be written as a sum of positive squares in only one way, i.e., 1860496 + 808201 = 1364^2 + 899^2 .

It is not a de Polignac number, because 2668697 - 2² = 2668693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428 + ... + 2349.

It is an arithmetic number, because the mean of its divisors is an integer number (459759).

2^2668697 is an apocalyptic number.

It is an amenable number.

2668697 is a deficient number, since it is larger than the sum of its proper divisors (89857).

2668697 is an equidigital number, since it uses as much as digits as its factorization.

2668697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839 (or 2808 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 2668697 is about 1633.6147036557. The cubic root of 2668697 is about 138.7074398047.

The spelling of 2668697 in words is "two million, six hundred sixty-eight thousand, six hundred ninety-seven".