677508823 has 2 divisors, whose sum is σ = 677508824. Its totient is φ = 677508822.

The previous prime is 677508773. The next prime is 677508827. The reversal of 677508823 is 328805776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677508823 - 2¹³ = 677500631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677508827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338754411 + 338754412.

It is an arithmetic number, because the mean of its divisors is an integer number (338754412).

Almost surely, 2^677508823 is an apocalyptic number.

677508823 is a deficient number, since it is larger than the sum of its proper divisors (1).

677508823 is an equidigital number, since it uses as much as digits as its factorization.

677508823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 677508823 is about 26028.9996542318. Note that the first 3 decimals coincide. The cubic root of 677508823 is about 878.2907693328.

The spelling of 677508823 in words is "six hundred seventy-seven million, five hundred eight thousand, eight hundred twenty-three".