86047221 has 16 divisors (see below), whose sum is σ = 123940544. Its totient is φ = 52786944.

The previous prime is 86047207. The next prime is 86047223. The reversal of 86047221 is 12274068.

It is not a de Polignac number, because 86047221 - 2¹³ = 86039029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86047223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9870 + ... + 16416.

It is an arithmetic number, because the mean of its divisors is an integer number (7746284).

Almost surely, 2^86047221 is an apocalyptic number.

It is an amenable number.

86047221 is a deficient number, since it is larger than the sum of its proper divisors (37893323).

86047221 is a wasteful number, since it uses less digits than its factorization.

86047221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 86047221 is about 9276.1641317950. The cubic root of 86047221 is about 441.4812697291.

It can be divided in two parts, 86047 and 221, that added together give a palindrome (86268).

The spelling of 86047221 in words is "eighty-six million, forty-seven thousand, two hundred twenty-one".