826668 has 18 divisors (see below), whose sum is σ = 2089724. Its totient is φ = 275544.

The previous prime is 826667. The next prime is 826669. The reversal of 826668 is 866628.

826668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (826667) and next prime (826669).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22963 = 826668 / (8 + 2 + 6 + 6 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (826663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11446 + ... + 11517.

2⁸²⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

826668 is an abundant number, since it is smaller than the sum of its proper divisors (1263056).

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

826668 is a wasteful number, since it uses less digits than its factorization.

826668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22973 (or 22968 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 826668 is about 909.2128463677. The cubic root of 826668 is about 93.8520382338.

The spelling of 826668 in words is "eight hundred twenty-six thousand, six hundred sixty-eight".