7266666 has 32 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 2105840.

The previous prime is 7266661. The next prime is 7266673. The reversal of 7266666 is 6666627.

It is an Ulam number.

7266666 is a modest number, since divided by 6666 gives 726 as remainder.

It is not an unprimeable number, because it can be changed into a prime (7266661) 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 15 ways as a sum of consecutive naturals, for example, 876 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^7266666 is an apocalyptic number.

7266666 is an abundant number, since it is smaller than the sum of its proper divisors (9280662).

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

7266666 is a wasteful number, since it uses less digits than its factorization.

7266666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826.

The product of its digits is 108864, while the sum is 39.

The square root of 7266666 is about 2695.6754255659. The cubic root of 7266666 is about 193.6920220558.

Subtracting from 7266666 its sum of digits (39), we obtain a palindrome (7266627).

The spelling of 7266666 in words is "seven million, two hundred sixty-six thousand, six hundred sixty-six".