86910828 has 12 divisors (see below), whose sum is σ = 202791960. Its totient is φ = 28970272.

The previous prime is 86910827. The next prime is 86910833. The reversal of 86910828 is 82801968.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86910828.

It is not an unprimeable number, because it can be changed into a prime (86910821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3621273 + ... + 3621296.

It is an arithmetic number, because the mean of its divisors is an integer number (16899330).

Almost surely, 2^86910828 is an apocalyptic number.

It is an amenable number.

86910828 is an abundant number, since it is smaller than the sum of its proper divisors (115881132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86910828 is a wasteful number, since it uses less digits than its factorization.

86910828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242576 (or 7242574 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 86910828 is about 9322.5977066481. The cubic root of 86910828 is about 442.9533213831.

The spelling of 86910828 in words is "eighty-six million, nine hundred ten thousand, eight hundred twenty-eight".