798491618 has 8 divisors (see below), whose sum is σ = 1199519148. Its totient is φ = 398651904.

The previous prime is 798491611. The next prime is 798491653. The reversal of 798491618 is 816194897.

It can be written as a sum of positive squares in 2 ways, for example, as 757185289 + 41306329 = 27517^2 + 6427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 798491618.

It is not an unprimeable number, because it can be changed into a prime (798491611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295271 + ... + 297962.

Almost surely, 2^798491618 is an apocalyptic number.

798491618 is a deficient number, since it is larger than the sum of its proper divisors (401027530).

798491618 is a wasteful number, since it uses less digits than its factorization.

798491618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593908.

The product of its digits is 870912, while the sum is 53.

The square root of 798491618 is about 28257.5939881654. The cubic root of 798491618 is about 927.7339588958.

The spelling of 798491618 in words is "seven hundred ninety-eight million, four hundred ninety-one thousand, six hundred eighteen".