797718878 has 32 divisors (see below), whose sum is σ = 1348431840. Its totient is φ = 353707200.

The previous prime is 797718839. The next prime is 797718923. The reversal of 797718878 is 878817797.

It is a self number, because there is not a number n which added to its sum of digits gives 797718878.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 105488 + ... + 112796.

It is an arithmetic number, because the mean of its divisors is an integer number (42138495).

Almost surely, 2^797718878 is an apocalyptic number.

797718878 is a deficient number, since it is larger than the sum of its proper divisors (550712962).

797718878 is a wasteful number, since it uses less digits than its factorization.

797718878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385 (or 7363 counting only the distinct ones).

The product of its digits is 11063808, while the sum is 62.

The square root of 797718878 is about 28243.9175398881. The cubic root of 797718878 is about 927.4345908930.

The spelling of 797718878 in words is "seven hundred ninety-seven million, seven hundred eighteen thousand, eight hundred seventy-eight".