677508847 has 2 divisors, whose sum is σ = 677508848. Its totient is φ = 677508846.

The previous prime is 677508827. The next prime is 677508857. The reversal of 677508847 is 748805776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677508847 - 2⁷ = 677508719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677508794 and 677508803.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 338754423 + 338754424.

It is an arithmetic number, because the mean of its divisors is an integer number (338754424).

Almost surely, 2^677508847 is an apocalyptic number.

677508847 is a deficient number, since it is larger than the sum of its proper divisors (1).

677508847 is an equidigital number, since it uses as much as digits as its factorization.

677508847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The square root of 677508847 is about 26029.0001152561. Note that the first 3 decimals coincide. The cubic root of 677508847 is about 878.2907797037.

The spelling of 677508847 in words is "six hundred seventy-seven million, five hundred eight thousand, eight hundred forty-seven".