86831870 has 8 divisors (see below), whose sum is σ = 156297384. Its totient is φ = 34732744.

The previous prime is 86831803. The next prime is 86831873. The reversal of 86831870 is 7813868.

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 (86831873) 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, 4341584 + ... + 4341603.

It is an arithmetic number, because the mean of its divisors is an integer number (19537173).

Almost surely, 2^86831870 is an apocalyptic number.

86831870 is a deficient number, since it is larger than the sum of its proper divisors (69465514).

86831870 is a wasteful number, since it uses less digits than its factorization.

86831870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8683194.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 86831870 is about 9318.3619805200. The cubic root of 86831870 is about 442.8191405377.

The spelling of 86831870 in words is "eighty-six million, eight hundred thirty-one thousand, eight hundred seventy".