626940873 has 12 divisors (see below), whose sum is σ = 975241540. Its totient is φ = 385809696.

The previous prime is 626940871. The next prime is 626940887. The reversal of 626940873 is 378049626.

It can be written as a sum of positive squares in 2 ways, for example, as 150479289 + 476461584 = 12267^2 + 21828^2 .

It is not a de Polignac number, because 626940873 - 2¹ = 626940871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (626940871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2679118 + ... + 2679351.

Almost surely, 2^626940873 is an apocalyptic number.

It is an amenable number.

626940873 is a deficient number, since it is larger than the sum of its proper divisors (348300667).

626940873 is a wasteful number, since it uses less digits than its factorization.

626940873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358488 (or 5358485 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 626940873 is about 25038.7873707973. The cubic root of 626940873 is about 855.8720844358.

The spelling of 626940873 in words is "six hundred twenty-six million, nine hundred forty thousand, eight hundred seventy-three".