678253 has 2 divisors, whose sum is σ = 678254. Its totient is φ = 678252.

The previous prime is 678229. The next prime is 678289. The reversal of 678253 is 352876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 272484 = 637^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 678253 - 2⁵ = 678221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339126 + 339127.

It is an arithmetic number, because the mean of its divisors is an integer number (339127).

2⁶⁷⁸²⁵³ is an apocalyptic number.

It is an amenable number.

678253 is a deficient number, since it is larger than the sum of its proper divisors (1).

678253 is an equidigital number, since it uses as much as digits as its factorization.

678253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 678253 is about 823.5611695557. The cubic root of 678253 is about 87.8612223759.

The spelling of 678253 in words is "six hundred seventy-eight thousand, two hundred fifty-three".