86717885 has 8 divisors (see below), whose sum is σ = 106481760. Its totient is φ = 67760784.

The previous prime is 86717879. The next prime is 86717887. The reversal of 86717885 is 58871768.

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 86717885 - 2¹⁴ = 86701501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86717887) 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, 201455 + ... + 201884.

It is an arithmetic number, because the mean of its divisors is an integer number (13310220).

Almost surely, 2^86717885 is an apocalyptic number.

It is an amenable number.

86717885 is a deficient number, since it is larger than the sum of its proper divisors (19763875).

86717885 is a wasteful number, since it uses less digits than its factorization.

86717885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403387.

The product of its digits is 752640, while the sum is 50.

The square root of 86717885 is about 9312.2438219797. The cubic root of 86717885 is about 442.6252914280.

The spelling of 86717885 in words is "eighty-six million, seven hundred seventeen thousand, eight hundred eighty-five".