626668 has 12 divisors (see below), whose sum is σ = 1253392. Its totient is φ = 268560.

The previous prime is 626663. The next prime is 626683. The reversal of 626668 is 866626.

626668 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (626663) by changing a digit.

626668 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 3 ways as a sum of consecutive naturals, for example, 11163 + ... + 11218.

2⁶²⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

626668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

626668 is a wasteful number, since it uses less digits than its factorization.

626668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22392 (or 22390 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 626668 is about 791.6236479540. The cubic root of 626668 is about 85.5747895014.

The spelling of 626668 in words is "six hundred twenty-six thousand, six hundred sixty-eight".