86894279 has 4 divisors (see below), whose sum is σ = 87273960. Its totient is φ = 86514600.

The previous prime is 86894261. The next prime is 86894287. The reversal of 86894279 is 97249868.

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 86894279 - 2¹² = 86890183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86894279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86894219) 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, 189497 + ... + 189954.

It is an arithmetic number, because the mean of its divisors is an integer number (21818490).

Almost surely, 2^86894279 is an apocalyptic number.

86894279 is a deficient number, since it is larger than the sum of its proper divisors (379681).

86894279 is a wasteful number, since it uses less digits than its factorization.

86894279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379680.

The product of its digits is 1741824, while the sum is 53.

The square root of 86894279 is about 9321.7100898923. The cubic root of 86894279 is about 442.9252048258.

The spelling of 86894279 in words is "eighty-six million, eight hundred ninety-four thousand, two hundred seventy-nine".