86540447 has 8 divisors (see below), whose sum is σ = 101576736. Its totient is φ = 72172512.

The previous prime is 86540417. The next prime is 86540453. The reversal of 86540447 is 74404568.

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 86540447 - 2²⁰ = 85491871 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 86540447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86540417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166808 + ... + 167325.

It is an arithmetic number, because the mean of its divisors is an integer number (12697092).

Almost surely, 2^86540447 is an apocalyptic number.

86540447 is a deficient number, since it is larger than the sum of its proper divisors (15036289).

86540447 is a wasteful number, since it uses less digits than its factorization.

86540447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334177.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 86540447 is about 9302.7118089297. The cubic root of 86540447 is about 442.3231923677.

The spelling of 86540447 in words is "eighty-six million, five hundred forty thousand, four hundred forty-seven".