86770812 has 36 divisors (see below), whose sum is σ = 211666280. Its totient is φ = 27664032.

The previous prime is 86770811. The next prime is 86770819. The reversal of 86770812 is 21807768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86770811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487 + ... + 13182.

Almost surely, 2^86770812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86770812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105833140).

86770812 is an abundant number, since it is smaller than the sum of its proper divisors (124895468).

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

86770812 is a wasteful number, since it uses less digits than its factorization.

86770812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722 (or 13697 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 86770812 is about 9315.0851847957. The cubic root of 86770812 is about 442.7153230839.

The spelling of 86770812 in words is "eighty-six million, seven hundred seventy thousand, eight hundred twelve".