626413 has 4 divisors (see below), whose sum is σ = 635068. Its totient is φ = 617760.

The previous prime is 626393. The next prime is 626443. The reversal of 626413 is 314626.

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 110889 + 515524 = 333^2 + 718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626413 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4218 + ... + 4363.

It is an arithmetic number, because the mean of its divisors is an integer number (158767).

2⁶²⁶⁴¹³ is an apocalyptic number.

It is an amenable number.

626413 is a deficient number, since it is larger than the sum of its proper divisors (8655).

626413 is an equidigital number, since it uses as much as digits as its factorization.

626413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654.

The product of its digits is 864, while the sum is 22.

The square root of 626413 is about 791.4625701826. The cubic root of 626413 is about 85.5631807325.

The spelling of 626413 in words is "six hundred twenty-six thousand, four hundred thirteen".