798770161 has 16 divisors (see below), whose sum is σ = 926896768. Its totient is φ = 674179200.

The previous prime is 798770153. The next prime is 798770201. The reversal of 798770161 is 161077897.

It is a 2-Lehmer number, since φ(798770161) divides (798770161-1)².

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 798770161 - 2³ = 798770153 is a prime.

It is a deceptive number, since it divides R_798770160.

It is not an unprimeable number, because it can be changed into a prime (798770111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520966 + ... + 522496.

It is an arithmetic number, because the mean of its divisors is an integer number (57931048).

It is a Poulet number, since it divides 2^798770160-1.

Almost surely, 2^798770161 is an apocalyptic number.

It is an amenable number.

798770161 is a deficient number, since it is larger than the sum of its proper divisors (128126607).

798770161 is a wasteful number, since it uses less digits than its factorization.

798770161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632.

The product of its (nonzero) digits is 148176, while the sum is 46.

The square root of 798770161 is about 28262.5221981337. The cubic root of 798770161 is about 927.8418221687.

The spelling of 798770161 in words is "seven hundred ninety-eight million, seven hundred seventy thousand, one hundred sixty-one".