86786055 has 24 divisors (see below), whose sum is σ = 151021728. Its totient is φ = 46103616.

The previous prime is 86786047. The next prime is 86786057. The reversal of 86786055 is 55068768.

It is not a de Polignac number, because 86786055 - 2³ = 86786047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86786055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86786057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8169 + ... + 15501.

It is an arithmetic number, because the mean of its divisors is an integer number (6292572).

Almost surely, 2^86786055 is an apocalyptic number.

86786055 is a deficient number, since it is larger than the sum of its proper divisors (64235673).

86786055 is a wasteful number, since it uses less digits than its factorization.

86786055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607 (or 7604 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 86786055 is about 9315.9033378412. The cubic root of 86786055 is about 442.7412454511.

The spelling of 86786055 in words is "eighty-six million, seven hundred eighty-six thousand, fifty-five".