626445 has 12 divisors (see below), whose sum is σ = 1085916. Its totient is φ = 334080.

The previous prime is 626443. The next prime is 626477. The reversal of 626445 is 544626.

It is a happy number.

626445 is nontrivially palindromic in base 14.

626445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 328329 = 546^2 + 573^2 .

It is not a de Polignac number, because 626445 - 2¹ = 626443 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 6⁷ + 2³ + 4⁵ + 6⁷ + 4⁸ + 5 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626443) 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, 6916 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (90493).

2⁶²⁶⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

626445 is a deficient number, since it is larger than the sum of its proper divisors (459471).

626445 is a wasteful number, since it uses less digits than its factorization.

626445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13932 (or 13929 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 626445 is about 791.4827856625. The cubic root of 626445 is about 85.5646376921.

The spelling of 626445 in words is "six hundred twenty-six thousand, four hundred forty-five".