86775505 has 8 divisors (see below), whose sum is σ = 106552512. Its totient is φ = 67805808.

The previous prime is 86775473. The next prime is 86775509. The reversal of 86775505 is 50557768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86775505 - 2⁵ = 86775473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86775509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201589 + ... + 202018.

It is an arithmetic number, because the mean of its divisors is an integer number (13319064).

Almost surely, 2^86775505 is an apocalyptic number.

It is an amenable number.

86775505 is a deficient number, since it is larger than the sum of its proper divisors (19777007).

86775505 is a wasteful number, since it uses less digits than its factorization.

86775505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403655.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 86775505 is about 9315.3370846148. The cubic root of 86775505 is about 442.7233043605.

The spelling of 86775505 in words is "eighty-six million, seven hundred seventy-five thousand, five hundred five".