86678243 has 4 divisors (see below), whose sum is σ = 86729280. Its totient is φ = 86627208.

The previous prime is 86678233. The next prime is 86678281. The reversal of 86678243 is 34287668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86678243 - 2¹⁰ = 86677219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86678194 and 86678203.

It is not an unprimeable number, because it can be changed into a prime (86678203) 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, 22880 + ... + 26397.

It is an arithmetic number, because the mean of its divisors is an integer number (21682320).

Almost surely, 2^86678243 is an apocalyptic number.

86678243 is a deficient number, since it is larger than the sum of its proper divisors (51037).

86678243 is a wasteful number, since it uses less digits than its factorization.

86678243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51036.

The product of its digits is 387072, while the sum is 44.

The square root of 86678243 is about 9310.1150905883. The cubic root of 86678243 is about 442.5578342700.

The spelling of 86678243 in words is "eighty-six million, six hundred seventy-eight thousand, two hundred forty-three".