628499 has 2 divisors, whose sum is σ = 628500. Its totient is φ = 628498.

The previous prime is 628493. The next prime is 628547. The reversal of 628499 is 994826.

628499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628499 - 2¹⁶ = 562963 is a prime.

It is not a weakly prime, because it can be changed into another prime (628493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314249 + 314250.

It is an arithmetic number, because the mean of its divisors is an integer number (314250).

2⁶²⁸⁴⁹⁹ is an apocalyptic number.

628499 is a deficient number, since it is larger than the sum of its proper divisors (1).

628499 is an equidigital number, since it uses as much as digits as its factorization.

628499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 628499 is about 792.7792883268. The cubic root of 628499 is about 85.6580526665.

The spelling of 628499 in words is "six hundred twenty-eight thousand, four hundred ninety-nine".