86418447 has 8 divisors (see below), whose sum is σ = 118035120. Its totient is φ = 56207040.

The previous prime is 86418439. The next prime is 86418481. The reversal of 86418447 is 74481468.

It is a happy number.

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

It is not a de Polignac number, because 86418447 - 2³ = 86418439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86418399 and 86418408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86418407) 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, 351172 + ... + 351417.

It is an arithmetic number, because the mean of its divisors is an integer number (14754390).

Almost surely, 2^86418447 is an apocalyptic number.

86418447 is a deficient number, since it is larger than the sum of its proper divisors (31616673).

86418447 is a wasteful number, since it uses less digits than its factorization.

86418447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702633.

The product of its digits is 172032, while the sum is 42.

The square root of 86418447 is about 9296.1522685464. The cubic root of 86418447 is about 442.1152402503.

The spelling of 86418447 in words is "eighty-six million, four hundred eighteen thousand, four hundred forty-seven".