798809567 has 2 divisors, whose sum is σ = 798809568. Its totient is φ = 798809566.

The previous prime is 798809537. The next prime is 798809591. The reversal of 798809567 is 765908897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 798809567 - 2²⁶ = 731700703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798809507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399404783 + 399404784.

It is an arithmetic number, because the mean of its divisors is an integer number (399404784).

Almost surely, 2^798809567 is an apocalyptic number.

798809567 is a deficient number, since it is larger than the sum of its proper divisors (1).

798809567 is an equidigital number, since it uses as much as digits as its factorization.

798809567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The square root of 798809567 is about 28263.2193318454. The cubic root of 798809567 is about 927.8570797632.

The spelling of 798809567 in words is "seven hundred ninety-eight million, eight hundred nine thousand, five hundred sixty-seven".