2997666 has 48 divisors (see below), whose sum is σ = 7635264. Its totient is φ = 832032.

The previous prime is 2997653. The next prime is 2997667. The reversal of 2997666 is 6667992.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2997667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4341 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (159068).

2^2997666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2997666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3817632).

2997666 is an abundant number, since it is smaller than the sum of its proper divisors (4637598).

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

2997666 is a wasteful number, since it uses less digits than its factorization.

2997666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 692 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 2997666 is about 1731.3769087059. The cubic root of 2997666 is about 144.1875449880.

It can be divided in two parts, 2997 and 666, that added together give a palindrome (3663).

The spelling of 2997666 in words is "two million, nine hundred ninety-seven thousand, six hundred sixty-six".