86428714 has 8 divisors (see below), whose sum is σ = 137269188. Its totient is φ = 40672320.

The previous prime is 86428711. The next prime is 86428721. The reversal of 86428714 is 41782468.

It can be written as a sum of positive squares in 2 ways, for example, as 83814025 + 2614689 = 9155^2 + 1617^2 .

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

It is not an unprimeable number, because it can be changed into a prime (86428711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270977 + ... + 1271044.

Almost surely, 2^86428714 is an apocalyptic number.

86428714 is a deficient number, since it is larger than the sum of its proper divisors (50840474).

86428714 is a wasteful number, since it uses less digits than its factorization.

86428714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542040.

The product of its digits is 86016, while the sum is 40.

The square root of 86428714 is about 9296.7044698646. The cubic root of 86428714 is about 442.1327481535.

The spelling of 86428714 in words is "eighty-six million, four hundred twenty-eight thousand, seven hundred fourteen".