671574347 has 2 divisors, whose sum is σ = 671574348. Its totient is φ = 671574346.

The previous prime is 671574313. The next prime is 671574353. The reversal of 671574347 is 743475176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671574347 - 2⁶ = 671574283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671574298 and 671574307.

It is not a weakly prime, because it can be changed into another prime (671574367) 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, 335787173 + 335787174.

It is an arithmetic number, because the mean of its divisors is an integer number (335787174).

Almost surely, 2^671574347 is an apocalyptic number.

671574347 is a deficient number, since it is larger than the sum of its proper divisors (1).

671574347 is an equidigital number, since it uses as much as digits as its factorization.

671574347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 44.

The square root of 671574347 is about 25914.7515326696. The cubic root of 671574347 is about 875.7188528593.

The spelling of 671574347 in words is "six hundred seventy-one million, five hundred seventy-four thousand, three hundred forty-seven".