86351789 has 16 divisors (see below), whose sum is σ = 97433280. Its totient is φ = 76043520.

The previous prime is 86351777. The next prime is 86351803. The reversal of 86351789 is 98715368.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86351789 - 2¹² = 86347693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86351689) 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, 25199 + ... + 28419.

It is an arithmetic number, because the mean of its divisors is an integer number (6089580).

Almost surely, 2^86351789 is an apocalyptic number.

It is an amenable number.

86351789 is a deficient number, since it is larger than the sum of its proper divisors (11081491).

86351789 is a wasteful number, since it uses less digits than its factorization.

86351789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340.

The product of its digits is 362880, while the sum is 47.

The square root of 86351789 is about 9292.5663301372. The cubic root of 86351789 is about 442.0015372960.

The spelling of 86351789 in words is "eighty-six million, three hundred fifty-one thousand, seven hundred eighty-nine".