86851090 has 32 divisors (see below), whose sum is σ = 165176640. Its totient is φ = 32788800.

The previous prime is 86851087. The next prime is 86851097. The reversal of 86851090 is 9015868.

It is a super-2 number, since 2×86851090² = 15086223668376200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (86851097) 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 15 ways as a sum of consecutive naturals, for example, 62200 + ... + 63580.

It is an arithmetic number, because the mean of its divisors is an integer number (5161770).

Almost surely, 2^86851090 is an apocalyptic number.

86851090 is a deficient number, since it is larger than the sum of its proper divisors (78325550).

86851090 is a wasteful number, since it uses less digits than its factorization.

86851090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 86851090 is about 9319.3932205911. The cubic root of 86851090 is about 442.8518104011.

The spelling of 86851090 in words is "eighty-six million, eight hundred fifty-one thousand, ninety".