671140583 has 2 divisors, whose sum is σ = 671140584. Its totient is φ = 671140582.

The previous prime is 671140559. The next prime is 671140597. The reversal of 671140583 is 385041176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671140583 - 2²² = 666946279 is a prime.

It is equal to p_34834607 and since 671140583 and 34834607 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671140523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335570291 + 335570292.

It is an arithmetic number, because the mean of its divisors is an integer number (335570292).

Almost surely, 2^671140583 is an apocalyptic number.

671140583 is a deficient number, since it is larger than the sum of its proper divisors (1).

671140583 is an equidigital number, since it uses as much as digits as its factorization.

671140583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 671140583 is about 25906.3811251205. The cubic root of 671140583 is about 875.5302725355.

The spelling of 671140583 in words is "six hundred seventy-one million, one hundred forty thousand, five hundred eighty-three".