86771799 has 24 divisors (see below), whose sum is σ = 130197600. Its totient is φ = 55621440.

The previous prime is 86771749. The next prime is 86771819. The reversal of 86771799 is 99717768.

It is not a de Polignac number, because 86771799 - 2⁹ = 86771287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86771749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80637 + ... + 81705.

It is an arithmetic number, because the mean of its divisors is an integer number (5424900).

Almost surely, 2^86771799 is an apocalyptic number.

86771799 is a deficient number, since it is larger than the sum of its proper divisors (43425801).

86771799 is a wasteful number, since it uses less digits than its factorization.

86771799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1412 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 86771799 is about 9315.1381632266. The cubic root of 86771799 is about 442.7170016758.

The spelling of 86771799 in words is "eighty-six million, seven hundred seventy-one thousand, seven hundred ninety-nine".