86444125 has 8 divisors (see below), whose sum is σ = 107882424. Its totient is φ = 69155200.

The previous prime is 86444107. The next prime is 86444131. The reversal of 86444125 is 52144468.

It can be written as a sum of positive squares in 4 ways, for example, as 10771524 + 75672601 = 3282^2 + 8699^2 .

It is not a de Polignac number, because 86444125 - 2⁵ = 86444093 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345652 + ... + 345901.

It is an arithmetic number, because the mean of its divisors is an integer number (13485303).

Almost surely, 2^86444125 is an apocalyptic number.

It is an amenable number.

86444125 is a deficient number, since it is larger than the sum of its proper divisors (21438299).

86444125 is an equidigital number, since it uses as much as digits as its factorization.

86444125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691568 (or 691558 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 86444125 is about 9297.5332750144. The cubic root of 86444125 is about 442.1590253112.

It can be divided in two parts, 8644 and 4125, that added together give a square (12769 = 113²).

The spelling of 86444125 in words is "eighty-six million, four hundred forty-four thousand, one hundred twenty-five".