86503505 has 12 divisors (see below), whose sum is σ = 114099636. Its totient is φ = 62911200.

The previous prime is 86503493. The next prime is 86503507. The reversal of 86503505 is 50530568.

It can be written as a sum of positive squares in 2 ways, for example, as 49098049 + 37405456 = 7007^2 + 6116^2 .

It is not a de Polignac number, because 86503505 - 2¹² = 86499409 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86503507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70886 + ... + 72095.

It is an arithmetic number, because the mean of its divisors is an integer number (9508303).

Almost surely, 2^86503505 is an apocalyptic number.

It is an amenable number.

86503505 is a deficient number, since it is larger than the sum of its proper divisors (27596131).

86503505 is a wasteful number, since it uses less digits than its factorization.

86503505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143008 (or 142997 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 86503505 is about 9300.7260469277. The cubic root of 86503505 is about 442.2602444261.

The spelling of 86503505 in words is "eighty-six million, five hundred three thousand, five hundred five".