677138047 has 2 divisors, whose sum is σ = 677138048. Its totient is φ = 677138046.

The previous prime is 677138027. The next prime is 677138057. The reversal of 677138047 is 740831776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677138047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677137994 and 677138012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677138027) 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, 338569023 + 338569024.

It is an arithmetic number, because the mean of its divisors is an integer number (338569024).

Almost surely, 2^677138047 is an apocalyptic number.

677138047 is a deficient number, since it is larger than the sum of its proper divisors (1).

677138047 is an equidigital number, since it uses as much as digits as its factorization.

677138047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 677138047 is about 26021.8763159001. The cubic root of 677138047 is about 878.1305212049.

The spelling of 677138047 in words is "six hundred seventy-seven million, one hundred thirty-eight thousand, forty-seven".