2397666 has 16 divisors (see below), whose sum is σ = 4874688. Its totient is φ = 786000.

The previous prime is 2397649. The next prime is 2397677. The reversal of 2397666 is 6667932.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2910 + ... + 3641.

It is an arithmetic number, because the mean of its divisors is an integer number (304668).

2^2397666 is an apocalyptic number.

2397666 is an abundant number, since it is smaller than the sum of its proper divisors (2477022).

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

2397666 is a wasteful number, since it uses less digits than its factorization.

2397666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617.

The product of its digits is 81648, while the sum is 39.

The square root of 2397666 is about 1548.4398599881. The cubic root of 2397666 is about 133.8431743699.

It can be divided in two parts, 23976 and 66, that added together give a palindrome (24042).

The spelling of 2397666 in words is "two million, three hundred ninety-seven thousand, six hundred sixty-six".