671703077 has 2 divisors, whose sum is σ = 671703078. Its totient is φ = 671703076.

The previous prime is 671703013. The next prime is 671703083. The reversal of 671703077 is 770307176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659411041 + 12292036 = 25679^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 671703077 - 2⁶ = 671703013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671703077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671703007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335851538 + 335851539.

It is an arithmetic number, because the mean of its divisors is an integer number (335851539).

Almost surely, 2^671703077 is an apocalyptic number.

It is an amenable number.

671703077 is a deficient number, since it is larger than the sum of its proper divisors (1).

671703077 is an equidigital number, since it uses as much as digits as its factorization.

671703077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43218, while the sum is 38.

The square root of 671703077 is about 25917.2351341728. The cubic root of 671703077 is about 875.7748030239.

The spelling of 671703077 in words is "six hundred seventy-one million, seven hundred three thousand, seventy-seven".