798505899 has 16 divisors (see below), whose sum is σ = 1088204544. Its totient is φ = 520700000.

The previous prime is 798505871. The next prime is 798505909. The reversal of 798505899 is 998505897.

It is a cyclic number.

It is not a de Polignac number, because 798505899 - 2⁹ = 798505387 is a prime.

It is a super-2 number, since 2×798505899² = 1275223341475596402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (798505819) 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, 9274 + ... + 41024.

It is an arithmetic number, because the mean of its divisors is an integer number (68012784).

Almost surely, 2^798505899 is an apocalyptic number.

798505899 is a deficient number, since it is larger than the sum of its proper divisors (289698645).

798505899 is a wasteful number, since it uses less digits than its factorization.

798505899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31938.

The product of its (nonzero) digits is 8164800, while the sum is 60.

The square root of 798505899 is about 28257.8466801701. The cubic root of 798505899 is about 927.7394896947.

The spelling of 798505899 in words is "seven hundred ninety-eight million, five hundred five thousand, eight hundred ninety-nine".