797947 has 2 divisors, whose sum is σ = 797948. Its totient is φ = 797946.

The previous prime is 797933. The next prime is 797957. The reversal of 797947 is 749797.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797947 is a prime.

797947 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (797917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398973 + 398974.

It is an arithmetic number, because the mean of its divisors is an integer number (398974).

2⁷⁹⁷⁹⁴⁷ is an apocalyptic number.

797947 is a deficient number, since it is larger than the sum of its proper divisors (1).

797947 is an equidigital number, since it uses as much as digits as its factorization.

797947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 43.

The square root of 797947 is about 893.2787918674. The cubic root of 797947 is about 92.7522987978.

The spelling of 797947 in words is "seven hundred ninety-seven thousand, nine hundred forty-seven".