861793196 has 24 divisors (see below), whose sum is σ = 1689710736. Its totient is φ = 381136320.

The previous prime is 861793193. The next prime is 861793199. The reversal of 861793196 is 691397168.

It is an interprime number because it is at equal distance from previous prime (861793193) and next prime (861793199).

It is not an unprimeable number, because it can be changed into a prime (861793193) 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, 263051 + ... + 266306.

It is an arithmetic number, because the mean of its divisors is an integer number (70404614).

Almost surely, 2^861793196 is an apocalyptic number.

It is an amenable number.

861793196 is a deficient number, since it is larger than the sum of its proper divisors (827917540).

861793196 is a wasteful number, since it uses less digits than its factorization.

861793196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529409 (or 529407 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 861793196 is about 29356.3144144492. The cubic root of 861793196 is about 951.6290409676.

The spelling of 861793196 in words is "eight hundred sixty-one million, seven hundred ninety-three thousand, one hundred ninety-six".