86855390 has 8 divisors (see below), whose sum is σ = 156339720. Its totient is φ = 34742152.

The previous prime is 86855371. The next prime is 86855411. The reversal of 86855390 is 9355868.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4342760 + ... + 4342779.

It is an arithmetic number, because the mean of its divisors is an integer number (19542465).

Almost surely, 2^86855390 is an apocalyptic number.

86855390 is a deficient number, since it is larger than the sum of its proper divisors (69484330).

86855390 is a wasteful number, since it uses less digits than its factorization.

86855390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685546.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 86855390 is about 9319.6239194508. The cubic root of 86855390 is about 442.8591188158.

The spelling of 86855390 in words is "eighty-six million, eight hundred fifty-five thousand, three hundred ninety".