798745855 has 16 divisors (see below), whose sum is σ = 981826560. Its totient is φ = 623474208.

The previous prime is 798745841. The next prime is 798745859. The reversal of 798745855 is 558547897.

It is a cyclic number.

It is not a de Polignac number, because 798745855 - 2¹³ = 798737663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 798745855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798745859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333994 + ... + 336376.

It is an arithmetic number, because the mean of its divisors is an integer number (61364160).

Almost surely, 2^798745855 is an apocalyptic number.

798745855 is a deficient number, since it is larger than the sum of its proper divisors (183080705).

798745855 is a wasteful number, since it uses less digits than its factorization.

798745855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990.

The product of its digits is 14112000, while the sum is 58.

The square root of 798745855 is about 28262.0921907774. The cubic root of 798745855 is about 927.8324108874.

The spelling of 798745855 in words is "seven hundred ninety-eight million, seven hundred forty-five thousand, eight hundred fifty-five".