597997667 has 2 divisors, whose sum is σ = 597997668. Its totient is φ = 597997666.

The previous prime is 597997613. The next prime is 597997691. The reversal of 597997667 is 766799795.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 597997667 - 2¹⁶ = 597932131 is a prime.

It is not a weakly prime, because it can be changed into another prime (597997567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 298998833 + 298998834.

It is an arithmetic number, because the mean of its divisors is an integer number (298998834).

Almost surely, 2^597997667 is an apocalyptic number.

597997667 is a deficient number, since it is larger than the sum of its proper divisors (1).

597997667 is an equidigital number, since it uses as much as digits as its factorization.

597997667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45008460, while the sum is 65.

The square root of 597997667 is about 24453.9908194961. The cubic root of 597997667 is about 842.4933790684.

The spelling of 597997667 in words is "five hundred ninety-seven million, nine hundred ninety-seven thousand, six hundred sixty-seven".