626693 has 2 divisors, whose sum is σ = 626694. Its totient is φ = 626692.

The previous prime is 626687. The next prime is 626701. The reversal of 626693 is 396626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332929 + 293764 = 577^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 626693 - 2⁶ = 626629 is a prime.

It is a super-3 number, since 3×626693³ = 738389965333303671, which contains 333 as substring.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313346 + 313347.

It is an arithmetic number, because the mean of its divisors is an integer number (313347).

2⁶²⁶⁶⁹³ is an apocalyptic number.

It is an amenable number.

626693 is a deficient number, since it is larger than the sum of its proper divisors (1).

626693 is an equidigital number, since it uses as much as digits as its factorization.

626693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The square root of 626693 is about 791.6394381282. The cubic root of 626693 is about 85.5759274464.

The spelling of 626693 in words is "six hundred twenty-six thousand, six hundred ninety-three".