798732561 has 16 divisors (see below), whose sum is σ = 1164976128. Its totient is φ = 482754000.

The previous prime is 798732559. The next prime is 798732589. The reversal of 798732561 is 165237897.

It is not a de Polignac number, because 798732561 - 2¹ = 798732559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 798732561.

It is not an unprimeable number, because it can be changed into a prime (798732541) 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, 20865 + ... + 45086.

It is an arithmetic number, because the mean of its divisors is an integer number (72811008).

Almost surely, 2^798732561 is an apocalyptic number.

It is an amenable number.

798732561 is a deficient number, since it is larger than the sum of its proper divisors (366243567).

798732561 is a wasteful number, since it uses less digits than its factorization.

798732561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66332.

The product of its digits is 635040, while the sum is 48.

The square root of 798732561 is about 28261.8569984352. The cubic root of 798732561 is about 927.8272633709.

The spelling of 798732561 in words is "seven hundred ninety-eight million, seven hundred thirty-two thousand, five hundred sixty-one".