86748740 has 48 divisors (see below), whose sum is σ = 198050160. Its totient is φ = 31726080.

The previous prime is 86748721. The next prime is 86748751. The reversal of 86748740 is 4784768.

It can be written as a sum of positive squares in 8 ways, for example, as 1223236 + 85525504 = 1106^2 + 9248^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86748691 and 86748700.

It is an unprimeable number.

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, 26810 + ... + 29870.

It is an arithmetic number, because the mean of its divisors is an integer number (4126045).

Almost surely, 2^86748740 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 86748740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99025080).

86748740 is an abundant number, since it is smaller than the sum of its proper divisors (111301420).

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

86748740 is a wasteful number, since it uses less digits than its factorization.

86748740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192 (or 3190 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 86748740 is about 9313.9003645090. The cubic root of 86748740 is about 442.6777818837.

The spelling of 86748740 in words is "eighty-six million, seven hundred forty-eight thousand, seven hundred forty".