86447647 has 8 divisors (see below), whose sum is σ = 101561040. Its totient is φ = 72543360.

The previous prime is 86447629. The next prime is 86447653. The reversal of 86447647 is 74674468.

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

It is a cyclic number.

It is not a de Polignac number, because 86447647 - 2⁷ = 86447519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86447597 and 86447606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86447657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302122 + ... + 302407.

It is an arithmetic number, because the mean of its divisors is an integer number (12695130).

Almost surely, 2^86447647 is an apocalyptic number.

86447647 is a deficient number, since it is larger than the sum of its proper divisors (15113393).

86447647 is a wasteful number, since it uses less digits than its factorization.

86447647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604553.

The product of its digits is 903168, while the sum is 46.

The square root of 86447647 is about 9297.7226781616. The cubic root of 86447647 is about 442.1650302033.

The spelling of 86447647 in words is "eighty-six million, four hundred forty-seven thousand, six hundred forty-seven".