756666 has 24 divisors (see below), whose sum is σ = 1657344. Its totient is φ = 249480.

The previous prime is 756649. The next prime is 756667. The reversal of 756666 is 666657.

It is a self number, because there is not a number n which added to its sum of digits gives 756666.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 756666.

It is not an unprimeable number, because it can be changed into a prime (756667) by changing a digit.

756666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2121 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (69056).

2⁷⁵⁶⁶⁶⁶ is an apocalyptic number.

756666 is an abundant number, since it is smaller than the sum of its proper divisors (900678).

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

756666 is a wasteful number, since it uses less digits than its factorization.

756666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 463 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 756666 is about 869.8655068457. The cubic root of 756666 is about 91.1244122075.

Subtracting from 756666 its reverse (666657), we obtain a palindrome (90009).

The spelling of 756666 in words is "seven hundred fifty-six thousand, six hundred sixty-six".