86654721 has 8 divisors (see below), whose sum is σ = 115589824. Its totient is φ = 57744720.

The previous prime is 86654707. The next prime is 86654747. The reversal of 86654721 is 12745668.

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

It is not a de Polignac number, because 86654721 - 2²⁶ = 19545857 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 86654721.

It is not an unprimeable number, because it can be changed into a prime (86650721) 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, 4356 + ... + 13866.

It is an arithmetic number, because the mean of its divisors is an integer number (14448728).

Almost surely, 2^86654721 is an apocalyptic number.

It is an amenable number.

86654721 is a deficient number, since it is larger than the sum of its proper divisors (28935103).

86654721 is a wasteful number, since it uses less digits than its factorization.

86654721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551.

The product of its digits is 80640, while the sum is 39.

The square root of 86654721 is about 9308.8517551844. The cubic root of 86654721 is about 442.5177981286.

The spelling of 86654721 in words is "eighty-six million, six hundred fifty-four thousand, seven hundred twenty-one".