86064278 has 4 divisors (see below), whose sum is σ = 129096420. Its totient is φ = 43032138.

The previous prime is 86064271. The next prime is 86064287. The reversal of 86064278 is 87246068.

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

It is a super-2 number, since 2×86064278² = 14814119895322568, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86064271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21516068 + ... + 21516071.

It is an arithmetic number, because the mean of its divisors is an integer number (32274105).

Almost surely, 2^86064278 is an apocalyptic number.

86064278 is a deficient number, since it is larger than the sum of its proper divisors (43032142).

86064278 is a wasteful number, since it uses less digits than its factorization.

86064278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43032141.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 86064278 is about 9277.0834856651. The cubic root of 86064278 is about 441.5104391720.

The spelling of 86064278 in words is "eighty-six million, sixty-four thousand, two hundred seventy-eight".