86253220 has 24 divisors (see below), whose sum is σ = 189008064. Its totient is φ = 33001056.

The previous prime is 86253203. The next prime is 86253247. The reversal of 86253220 is 2235268.

It is an unprimeable number.

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, 93294 + ... + 94213.

It is an arithmetic number, because the mean of its divisors is an integer number (7875336).

Almost surely, 2^86253220 is an apocalyptic number.

It is an amenable number.

86253220 is an abundant number, since it is smaller than the sum of its proper divisors (102754844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86253220 is a wasteful number, since it uses less digits than its factorization.

86253220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187539 (or 187537 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 86253220 is about 9287.2611678578. The cubic root of 86253220 is about 441.8332943532.

Adding to 86253220 its reverse (2235268), we get a palindrome (88488488).

The spelling of 86253220 in words is "eighty-six million, two hundred fifty-three thousand, two hundred twenty".