667797583 has 2 divisors, whose sum is σ = 667797584. Its totient is φ = 667797582.

The previous prime is 667797551. The next prime is 667797601. The reversal of 667797583 is 385797766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667797583 - 2⁵ = 667797551 is a prime.

It is a super-2 number, since 2×667797583² = 891907223721283778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667597583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333898791 + 333898792.

It is an arithmetic number, because the mean of its divisors is an integer number (333898792).

Almost surely, 2^667797583 is an apocalyptic number.

667797583 is a deficient number, since it is larger than the sum of its proper divisors (1).

667797583 is an equidigital number, since it uses as much as digits as its factorization.

667797583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13335840, while the sum is 58.

The square root of 667797583 is about 25841.7797955172. The cubic root of 667797583 is about 874.0741588861.

The spelling of 667797583 in words is "six hundred sixty-seven million, seven hundred ninety-seven thousand, five hundred eighty-three".