678133 has 2 divisors, whose sum is σ = 678134. Its totient is φ = 678132.

The previous prime is 678103. The next prime is 678157. The reversal of 678133 is 331876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 49284 = 793^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 678133 - 2⁵ = 678101 is a prime.

It is a super-3 number, since 3×678133³ = 935547605693335911, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678103) 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, 339066 + 339067.

It is an arithmetic number, because the mean of its divisors is an integer number (339067).

2⁶⁷⁸¹³³ is an apocalyptic number.

It is an amenable number.

678133 is a deficient number, since it is larger than the sum of its proper divisors (1).

678133 is an equidigital number, since it uses as much as digits as its factorization.

678133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 678133 is about 823.4883119996. The cubic root of 678133 is about 87.8560404509.

The spelling of 678133 in words is "six hundred seventy-eight thousand, one hundred thirty-three".