626345 has 4 divisors (see below), whose sum is σ = 751620. Its totient is φ = 501072.

The previous prime is 626341. The next prime is 626347. The reversal of 626345 is 543626.

626345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326041 + 300304 = 571^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 626345 - 2² = 626341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (626341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62630 + ... + 62639.

It is an arithmetic number, because the mean of its divisors is an integer number (187905).

2⁶²⁶³⁴⁵ is an apocalyptic number.

It is an amenable number.

626345 is a deficient number, since it is larger than the sum of its proper divisors (125275).

626345 is a wasteful number, since it uses less digits than its factorization.

626345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125274.

The product of its digits is 4320, while the sum is 26.

The square root of 626345 is about 791.4196105733. The cubic root of 626345 is about 85.5600845288.

The spelling of 626345 in words is "six hundred twenty-six thousand, three hundred forty-five".