671319707 has 2 divisors, whose sum is σ = 671319708. Its totient is φ = 671319706.

The previous prime is 671319689. The next prime is 671319709. The reversal of 671319707 is 707913176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671319707 - 2²⁰ = 670271131 is a prime.

Together with 671319709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671319709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335659853 + 335659854.

It is an arithmetic number, because the mean of its divisors is an integer number (335659854).

Almost surely, 2^671319707 is an apocalyptic number.

671319707 is a deficient number, since it is larger than the sum of its proper divisors (1).

671319707 is an equidigital number, since it uses as much as digits as its factorization.

671319707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 671319707 is about 25909.8380350013. The cubic root of 671319707 is about 875.6081571289.

The spelling of 671319707 in words is "six hundred seventy-one million, three hundred nineteen thousand, seven hundred seven".