2666662 has 4 divisors (see below), whose sum is σ = 3999996. Its totient is φ = 1333330.

The previous prime is 2666659. The next prime is 2666663.

It is a happy number.

2666662 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2666662² = 14222172444488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666664 + ... + 666667.

It is an arithmetic number, because the mean of its divisors is an integer number (999999).

2^2666662 is an apocalyptic number.

2666662 is a deficient number, since it is larger than the sum of its proper divisors (1333334).

2666662 is a wasteful number, since it uses less digits than its factorization.

2666662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333333.

The product of its digits is 31104, while the sum is 34.

The square root of 2666662 is about 1632.9917329858. The cubic root of 2666662 is about 138.6721739779.

The spelling of 2666662 in words is "two million, six hundred sixty-six thousand, six hundred sixty-two".