86357224 has 8 divisors (see below), whose sum is σ = 161919810. Its totient is φ = 43178608.

The previous prime is 86357221. The next prime is 86357233. The reversal of 86357224 is 42275368.

It can be written as a sum of positive squares in only one way, i.e., 57002500 + 29354724 = 7550^2 + 5418^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (86357221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5397319 + ... + 5397334.

Almost surely, 2^86357224 is an apocalyptic number.

It is an amenable number.

86357224 is a deficient number, since it is larger than the sum of its proper divisors (75562586).

86357224 is a wasteful number, since it uses less digits than its factorization.

86357224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794659 (or 10794655 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 86357224 is about 9292.8587635883. The cubic root of 86357224 is about 442.0108103251.

The spelling of 86357224 in words is "eighty-six million, three hundred fifty-seven thousand, two hundred twenty-four".