756668 has 24 divisors (see below), whose sum is σ = 1496880. Its totient is φ = 331520.

The previous prime is 756667. The next prime is 756673. The reversal of 756668 is 866657.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 1572.

It is an arithmetic number, because the mean of its divisors is an integer number (62370).

2⁷⁵⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

756668 is a deficient number, since it is larger than the sum of its proper divisors (740212).

756668 is a wasteful number, since it uses less digits than its factorization.

756668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 756668 is about 869.8666564480. The cubic root of 756668 is about 91.1244924934.

The spelling of 756668 in words is "seven hundred fifty-six thousand, six hundred sixty-eight".