86321906 has 8 divisors (see below), whose sum is σ = 141254064. Its totient is φ = 39237220.

The previous prime is 86321881. The next prime is 86321923. The reversal of 86321906 is 60912368.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1961840 + ... + 1961883.

It is an arithmetic number, because the mean of its divisors is an integer number (17656758).

Almost surely, 2^86321906 is an apocalyptic number.

86321906 is a deficient number, since it is larger than the sum of its proper divisors (54932158).

86321906 is a wasteful number, since it uses less digits than its factorization.

86321906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923736.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 86321906 is about 9290.9582928781. The cubic root of 86321906 is about 441.9505448922.

The spelling of 86321906 in words is "eighty-six million, three hundred twenty-one thousand, nine hundred six".