86440574 has 8 divisors (see below), whose sum is σ = 141448248. Its totient is φ = 39291160.

The previous prime is 86440573. The next prime is 86440577. The reversal of 86440574 is 47504468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86440573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964537 + ... + 1964580.

It is an arithmetic number, because the mean of its divisors is an integer number (17681031).

Almost surely, 2^86440574 is an apocalyptic number.

86440574 is a deficient number, since it is larger than the sum of its proper divisors (55007674).

86440574 is a wasteful number, since it uses less digits than its factorization.

86440574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929130.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 86440574 is about 9297.3423084234. The cubic root of 86440574 is about 442.1529708099.

The spelling of 86440574 in words is "eighty-six million, four hundred forty thousand, five hundred seventy-four".