86021560 has 32 divisors (see below), whose sum is σ = 194414400. Its totient is φ = 34254720.

The previous prime is 86021539. The next prime is 86021561. The reversal of 86021560 is 6512068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86021561) 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 7 ways as a sum of consecutive naturals, for example, 4465 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (6075450).

Almost surely, 2^86021560 is an apocalyptic number.

It is an amenable number.

86021560 is an abundant number, since it is smaller than the sum of its proper divisors (108392840).

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

86021560 is a wasteful number, since it uses less digits than its factorization.

86021560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9631 (or 9627 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 86021560 is about 9274.7808599449. The cubic root of 86021560 is about 441.4373791882.

The spelling of 86021560 in words is "eighty-six million, twenty-one thousand, five hundred sixty".