626679121 has 2 divisors, whose sum is σ = 626679122. Its totient is φ = 626679120.

The previous prime is 626679107. The next prime is 626679139. The reversal of 626679121 is 121976626.

626679121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589955521 + 36723600 = 24289^2 + 6060^2 .

It is a cyclic number.

It is not a de Polignac number, because 626679121 - 2¹³ = 626670929 is a prime.

It is not a weakly prime, because it can be changed into another prime (626679161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313339560 + 313339561.

It is an arithmetic number, because the mean of its divisors is an integer number (313339561).

Almost surely, 2^626679121 is an apocalyptic number.

It is an amenable number.

626679121 is a deficient number, since it is larger than the sum of its proper divisors (1).

626679121 is an equidigital number, since it uses as much as digits as its factorization.

626679121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 626679121 is about 25033.5598946694. The cubic root of 626679121 is about 855.7529570857.

The spelling of 626679121 in words is "six hundred twenty-six million, six hundred seventy-nine thousand, one hundred twenty-one".