671319983 has 2 divisors, whose sum is σ = 671319984. Its totient is φ = 671319982.

The previous prime is 671319949. The next prime is 671320007. The reversal of 671319983 is 389913176.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671319983 - 2¹⁸ = 671057839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671339983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335659991 + 335659992.

It is an arithmetic number, because the mean of its divisors is an integer number (335659992).

Almost surely, 2^671319983 is an apocalyptic number.

671319983 is a deficient number, since it is larger than the sum of its proper divisors (1).

671319983 is an equidigital number, since it uses as much as digits as its factorization.

671319983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 671319983 is about 25909.8433611630. The cubic root of 671319983 is about 875.6082771253.

The spelling of 671319983 in words is "six hundred seventy-one million, three hundred nineteen thousand, nine hundred eighty-three".