626868869 has 8 divisors (see below), whose sum is σ = 693489600. Its totient is φ = 561853600.

The previous prime is 626868859. The next prime is 626868889. The reversal of 626868869 is 968868626.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 626868869 - 2¹² = 626864773 is a prime.

It is a super-2 number, since 2×626868869² = 785929157842678322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626868839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400544 + ... + 402105.

It is an arithmetic number, because the mean of its divisors is an integer number (86686200).

Almost surely, 2^626868869 is an apocalyptic number.

It is an amenable number.

626868869 is a deficient number, since it is larger than the sum of its proper divisors (66620731).

626868869 is a wasteful number, since it uses less digits than its factorization.

626868869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802731.

The product of its digits is 11943936, while the sum is 59.

The square root of 626868869 is about 25037.3494803264. The cubic root of 626868869 is about 855.8393176175.

The spelling of 626868869 in words is "six hundred twenty-six million, eight hundred sixty-eight thousand, eight hundred sixty-nine".