86071398 has 64 divisors (see below), whose sum is σ = 204492288. Its totient is φ = 23639040.

The previous prime is 86071393. The next prime is 86071421. The reversal of 86071398 is 89317068.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86071393) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 150453 + ... + 151023.

It is an arithmetic number, because the mean of its divisors is an integer number (3195192).

Almost surely, 2^86071398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86071398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102246144).

86071398 is an abundant number, since it is smaller than the sum of its proper divisors (118420890).

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

86071398 is a wasteful number, since it uses less digits than its factorization.

86071398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 86071398 is about 9277.4672190205. The cubic root of 86071398 is about 441.5226140553.

The spelling of 86071398 in words is "eighty-six million, seventy-one thousand, three hundred ninety-eight".