628493 has 2 divisors, whose sum is σ = 628494. Its totient is φ = 628492.

The previous prime is 628487. The next prime is 628499. The reversal of 628493 is 394826.

628493 is nontrivially palindromic in base 7.

628493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (628487) and next prime (628499).

It can be written as a sum of positive squares in only one way, i.e., 537289 + 91204 = 733^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 628493 - 2⁴ = 628477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314246 + 314247.

It is an arithmetic number, because the mean of its divisors is an integer number (314247).

2⁶²⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

628493 is a deficient number, since it is larger than the sum of its proper divisors (1).

628493 is an equidigital number, since it uses as much as digits as its factorization.

628493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 628493 is about 792.7755041624. The cubic root of 628493 is about 85.6577800859.

The spelling of 628493 in words is "six hundred twenty-eight thousand, four hundred ninety-three".