797195491 has 2 divisors, whose sum is σ = 797195492. Its totient is φ = 797195490.

The previous prime is 797195489. The next prime is 797195507. The reversal of 797195491 is 194591797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 797195491 - 2¹ = 797195489 is a prime.

Together with 797195489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (797195401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398597745 + 398597746.

It is an arithmetic number, because the mean of its divisors is an integer number (398597746).

Almost surely, 2^797195491 is an apocalyptic number.

797195491 is a deficient number, since it is larger than the sum of its proper divisors (1).

797195491 is an equidigital number, since it uses as much as digits as its factorization.

797195491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 52.

The square root of 797195491 is about 28234.6505379472. The cubic root of 797195491 is about 927.2317151601.

The spelling of 797195491 in words is "seven hundred ninety-seven million, one hundred ninety-five thousand, four hundred ninety-one".