8194779087 has 12 divisors (see below), whose sum is σ = 12009979800. Its totient is φ = 4966532560.

The previous prime is 8194779083. The next prime is 8194779107. The reversal of 8194779087 is 7809774918.

It is not a de Polignac number, because 8194779087 - 2² = 8194779083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8194779087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194779083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11287212 + ... + 11287937.

It is an arithmetic number, because the mean of its divisors is an integer number (1000831650).

Almost surely, 2^8194779087 is an apocalyptic number.

8194779087 is a deficient number, since it is larger than the sum of its proper divisors (3815200713).

8194779087 is a wasteful number, since it uses less digits than its factorization.

8194779087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22575174 (or 22575163 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 60.

The square root of 8194779087 is about 90525.0191217875. The cubic root of 8194779087 is about 2016.1016117549.

The spelling of 8194779087 in words is "eight billion, one hundred ninety-four million, seven hundred seventy-nine thousand, eighty-seven".