798505898 has 16 divisors (see below), whose sum is σ = 1205245440. Its totient is φ = 396765600.

The previous prime is 798505871. The next prime is 798505909. The reversal of 798505898 is 898505897.

It is a super-2 number, since 2×798505898² = 1275223338281572808, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 233783 + ... + 237173.

It is an arithmetic number, because the mean of its divisors is an integer number (75327840).

Almost surely, 2^798505898 is an apocalyptic number.

798505898 is a deficient number, since it is larger than the sum of its proper divisors (406739542).

798505898 is a wasteful number, since it uses less digits than its factorization.

798505898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 7257600, while the sum is 59.

The square root of 798505898 is about 28257.8466624759. The cubic root of 798505898 is about 927.7394893074.

Subtracting 798505898 from its reverse (898505897), we obtain a palindrome (99999999).

The spelling of 798505898 in words is "seven hundred ninety-eight million, five hundred five thousand, eight hundred ninety-eight".