797778504 has 64 divisors (see below), whose sum is σ = 2218406400. Its totient is φ = 265643712.

The previous prime is 797778503. The next prime is 797778523. The reversal of 797778504 is 405877797.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (797778503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337294 + ... + 339650.

It is an arithmetic number, because the mean of its divisors is an integer number (34662600).

Almost surely, 2^797778504 is an apocalyptic number.

It is an amenable number.

797778504 is an abundant number, since it is smaller than the sum of its proper divisors (1420627896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797778504 is a wasteful number, since it uses less digits than its factorization.

797778504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939 (or 3929 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The square root of 797778504 is about 28244.9730748677. The cubic root of 797778504 is about 927.4576975449.

The spelling of 797778504 in words is "seven hundred ninety-seven million, seven hundred seventy-eight thousand, five hundred four".