797161667 has 2 divisors, whose sum is σ = 797161668. Its totient is φ = 797161666.

The previous prime is 797161639. The next prime is 797161681. The reversal of 797161667 is 766161797.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797161667 is a prime.

It is not a weakly prime, because it can be changed into another prime (797161627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398580833 + 398580834.

It is an arithmetic number, because the mean of its divisors is an integer number (398580834).

Almost surely, 2^797161667 is an apocalyptic number.

797161667 is a deficient number, since it is larger than the sum of its proper divisors (1).

797161667 is an equidigital number, since it uses as much as digits as its factorization.

797161667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 50.

The square root of 797161667 is about 28234.0515512740. The cubic root of 797161667 is about 927.2186012169.

The spelling of 797161667 in words is "seven hundred ninety-seven million, one hundred sixty-one thousand, six hundred sixty-seven".