678130573 has 2 divisors, whose sum is σ = 678130574. Its totient is φ = 678130572.

The previous prime is 678130559. The next prime is 678130619. The reversal of 678130573 is 375031876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538843369 + 139287204 = 23213^2 + 11802^2 .

It is a cyclic number.

It is not a de Polignac number, because 678130573 - 2¹³ = 678122381 is a prime.

It is a super-2 number, since 2×678130573² = 919722148074616658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678130553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339065286 + 339065287.

It is an arithmetic number, because the mean of its divisors is an integer number (339065287).

Almost surely, 2^678130573 is an apocalyptic number.

It is an amenable number.

678130573 is a deficient number, since it is larger than the sum of its proper divisors (1).

678130573 is an equidigital number, since it uses as much as digits as its factorization.

678130573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 678130573 is about 26040.9403248039. The cubic root of 678130573 is about 878.5593564013.

The spelling of 678130573 in words is "six hundred seventy-eight million, one hundred thirty thousand, five hundred seventy-three".