168826689 has 12 divisors (see below), whose sum is σ = 244198656. Its totient is φ = 112395192.

The previous prime is 168826673. The next prime is 168826709. The reversal of 168826689 is 986628861.

It is a happy number.

It is not a de Polignac number, because 168826689 - 2⁴ = 168826673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168826639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5937 + ... + 19310.

It is an arithmetic number, because the mean of its divisors is an integer number (20349888).

Almost surely, 2^168826689 is an apocalyptic number.

It is an amenable number.

168826689 is a deficient number, since it is larger than the sum of its proper divisors (75371967).

168826689 is a wasteful number, since it uses less digits than its factorization.

168826689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25996 (or 25993 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 168826689 is about 12993.3324824696. The cubic root of 168826689 is about 552.6884231381.

The spelling of 168826689 in words is "one hundred sixty-eight million, eight hundred twenty-six thousand, six hundred eighty-nine".