86378705 has 8 divisors (see below), whose sum is σ = 118462272. Its totient is φ = 59231088.

The previous prime is 86378689. The next prime is 86378707. The reversal of 86378705 is 50787368.

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

It is not a de Polignac number, because 86378705 - 2⁴ = 86378689 is a prime.

It is a super-2 number, since 2×86378705² = 14922561354954050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86378707) 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, 1233947 + ... + 1234016.

It is an arithmetic number, because the mean of its divisors is an integer number (14807784).

Almost surely, 2^86378705 is an apocalyptic number.

It is an amenable number.

86378705 is a deficient number, since it is larger than the sum of its proper divisors (32083567).

86378705 is a wasteful number, since it uses less digits than its factorization.

86378705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467975.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 86378705 is about 9294.0144716909. The cubic root of 86378705 is about 442.0474567364.

The spelling of 86378705 in words is "eighty-six million, three hundred seventy-eight thousand, seven hundred five".