86889570 has 16 divisors (see below), whose sum is σ = 208535040. Its totient is φ = 23170544.

The previous prime is 86889563. The next prime is 86889571. The reversal of 86889570 is 7598868.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86889571) 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 7 ways as a sum of consecutive naturals, for example, 1448130 + ... + 1448189.

It is an arithmetic number, because the mean of its divisors is an integer number (13033440).

Almost surely, 2^86889570 is an apocalyptic number.

86889570 is an abundant number, since it is smaller than the sum of its proper divisors (121645470).

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

86889570 is a wasteful number, since it uses less digits than its factorization.

86889570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896329.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 86889570 is about 9321.4575040602. The cubic root of 86889570 is about 442.9172036375.

The spelling of 86889570 in words is "eighty-six million, eight hundred eighty-nine thousand, five hundred seventy".