676131977 has 2 divisors, whose sum is σ = 676131978. Its totient is φ = 676131976.

The previous prime is 676131959. The next prime is 676132031. The reversal of 676131977 is 779131676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 672676096 + 3455881 = 25936^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 676131977 - 2¹⁶ = 676066441 is a prime.

It is equal to p_35079869 and since 676131977 and 35079869 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (676131947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338065988 + 338065989.

It is an arithmetic number, because the mean of its divisors is an integer number (338065989).

Almost surely, 2^676131977 is an apocalyptic number.

It is an amenable number.

676131977 is a deficient number, since it is larger than the sum of its proper divisors (1).

676131977 is an equidigital number, since it uses as much as digits as its factorization.

676131977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 47.

The square root of 676131977 is about 26002.5378953671. The cubic root of 676131977 is about 877.6954062491.

The spelling of 676131977 in words is "six hundred seventy-six million, one hundred thirty-one thousand, nine hundred seventy-seven".