795778638 has 16 divisors (see below), whose sum is σ = 1592656896. Its totient is φ = 265076280.

The previous prime is 795778609. The next prime is 795778639. The reversal of 795778638 is 836877597.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (795778639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36256 + ... + 53907.

It is an arithmetic number, because the mean of its divisors is an integer number (99541056).

Almost surely, 2^795778638 is an apocalyptic number.

795778638 is an abundant number, since it is smaller than the sum of its proper divisors (796878258).

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

795778638 is a wasteful number, since it uses less digits than its factorization.

795778638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91639.

The product of its digits is 17781120, while the sum is 60.

The square root of 795778638 is about 28209.5487025227. The cubic root of 795778638 is about 926.6820674137.

The spelling of 795778638 in words is "seven hundred ninety-five million, seven hundred seventy-eight thousand, six hundred thirty-eight".