671140597 has 2 divisors, whose sum is σ = 671140598. Its totient is φ = 671140596.

The previous prime is 671140583. The next prime is 671140609. The reversal of 671140597 is 795041176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 634586481 + 36554116 = 25191^2 + 6046^2 .

It is a cyclic number.

It is not a de Polignac number, because 671140597 - 2⁷ = 671140469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671140397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335570298 + 335570299.

It is an arithmetic number, because the mean of its divisors is an integer number (335570299).

Almost surely, 2^671140597 is an apocalyptic number.

It is an amenable number.

671140597 is a deficient number, since it is larger than the sum of its proper divisors (1).

671140597 is an equidigital number, since it uses as much as digits as its factorization.

671140597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 671140597 is about 25906.3813953242. The cubic root of 671140597 is about 875.5302786233.

The spelling of 671140597 in words is "six hundred seventy-one million, one hundred forty thousand, five hundred ninety-seven".