86394447 has 12 divisors (see below), whose sum is σ = 124894224. Its totient is φ = 57549120.

The previous prime is 86394409. The next prime is 86394481. The reversal of 86394447 is 74449368.

86394447 is a `hidden beast` number, since 8 + 639 + 4 + 4 + 4 + 7 = 666.

It is not a de Polignac number, because 86394447 - 2⁶ = 86394383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86394947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10423 + ... + 16775.

It is an arithmetic number, because the mean of its divisors is an integer number (10407852).

Almost surely, 2^86394447 is an apocalyptic number.

86394447 is a deficient number, since it is larger than the sum of its proper divisors (38499777).

86394447 is a wasteful number, since it uses less digits than its factorization.

86394447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870 (or 7867 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 86394447 is about 9294.8613222576. The cubic root of 86394447 is about 442.0743086030.

The spelling of 86394447 in words is "eighty-six million, three hundred ninety-four thousand, four hundred forty-seven".