86209734 has 32 divisors (see below), whose sum is σ = 187344864. Its totient is φ = 26288640.

The previous prime is 86209733. The next prime is 86209763. The reversal of 86209734 is 43790268.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 86209692 and 86209701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86209733) 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 in 15 ways as a sum of consecutive naturals, for example, 3924 + ... + 13704.

It is an arithmetic number, because the mean of its divisors is an integer number (5854527).

Almost surely, 2^86209734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86209734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93672432).

86209734 is an abundant number, since it is smaller than the sum of its proper divisors (101135130).

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

86209734 is a wasteful number, since it uses less digits than its factorization.

86209734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9912.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 86209734 is about 9284.9197088612. The cubic root of 86209734 is about 441.7590293287.

The spelling of 86209734 in words is "eighty-six million, two hundred nine thousand, seven hundred thirty-four".