86159720 has 16 divisors (see below), whose sum is σ = 193859460. Its totient is φ = 34463872.

The previous prime is 86159713. The next prime is 86159741. The reversal of 86159720 is 2795168.

It can be written as a sum of positive squares in 2 ways, for example, as 74063236 + 12096484 = 8606^2 + 3478^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1076957 + ... + 1077036.

Almost surely, 2^86159720 is an apocalyptic number.

It is an amenable number.

86159720 is an abundant number, since it is smaller than the sum of its proper divisors (107699740).

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

86159720 is a wasteful number, since it uses less digits than its factorization.

86159720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154004 (or 2154000 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 86159720 is about 9282.2260261211. The cubic root of 86159720 is about 441.6735849555.

The spelling of 86159720 in words is "eighty-six million, one hundred fifty-nine thousand, seven hundred twenty".