798505816 has 16 divisors (see below), whose sum is σ = 1515238200. Its totient is φ = 394442304.

The previous prime is 798505811. The next prime is 798505817. The reversal of 798505816 is 618505897.

It is a super-2 number, since 2×798505816² = 1275223076371651712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 798505816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798505811) 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, 600621 + ... + 601948.

Almost surely, 2^798505816 is an apocalyptic number.

It is an amenable number.

798505816 is a deficient number, since it is larger than the sum of its proper divisors (716732384).

798505816 is a wasteful number, since it uses less digits than its factorization.

798505816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202658 (or 1202654 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 49.

The square root of 798505816 is about 28257.8452115514. The cubic root of 798505816 is about 927.7394575504.

The spelling of 798505816 in words is "seven hundred ninety-eight million, five hundred five thousand, eight hundred sixteen".