86319806 has 4 divisors (see below), whose sum is σ = 129479712. Its totient is φ = 43159902.

The previous prime is 86319797. The next prime is 86319809. The reversal of 86319806 is 60891368.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×86319806² = 14902217815755272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86319809) 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, 21579950 + ... + 21579953.

It is an arithmetic number, because the mean of its divisors is an integer number (32369928).

Almost surely, 2^86319806 is an apocalyptic number.

86319806 is a deficient number, since it is larger than the sum of its proper divisors (43159906).

86319806 is a wasteful number, since it uses less digits than its factorization.

86319806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43159905.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 86319806 is about 9290.8452790906. The cubic root of 86319806 is about 441.9469610060.

The spelling of 86319806 in words is "eighty-six million, three hundred nineteen thousand, eight hundred six".