798691 has 2 divisors, whose sum is σ = 798692. Its totient is φ = 798690.

The previous prime is 798667. The next prime is 798697. The reversal of 798691 is 196897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 798691 - 2⁹ = 798179 is a prime.

It is not a weakly prime, because it can be changed into another prime (798697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399345 + 399346.

It is an arithmetic number, because the mean of its divisors is an integer number (399346).

2⁷⁹⁸⁶⁹¹ is an apocalyptic number.

798691 is a deficient number, since it is larger than the sum of its proper divisors (1).

798691 is an equidigital number, since it uses as much as digits as its factorization.

798691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 798691 is about 893.6951381763. The cubic root of 798691 is about 92.7811170334.

The spelling of 798691 in words is "seven hundred ninety-eight thousand, six hundred ninety-one".