86717745 has 24 divisors (see below), whose sum is σ = 150846696. Its totient is φ = 46084608.

The previous prime is 86717723. The next prime is 86717753. The reversal of 86717745 is 54771768.

It can be written as a sum of positive squares in 4 ways, for example, as 56610576 + 30107169 = 7524^2 + 5487^2 .

It is not a de Polignac number, because 86717745 - 2¹⁴ = 86701361 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 86717745.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9897 + ... + 16473.

It is an arithmetic number, because the mean of its divisors is an integer number (6285279).

Almost surely, 2^86717745 is an apocalyptic number.

It is an amenable number.

86717745 is a deficient number, since it is larger than the sum of its proper divisors (64128951).

86717745 is a wasteful number, since it uses less digits than its factorization.

86717745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881 (or 6878 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 86717745 is about 9312.2363049914. The cubic root of 86717745 is about 442.6250532319.

The spelling of 86717745 in words is "eighty-six million, seven hundred seventeen thousand, seven hundred forty-five".