86448740 has 72 divisors (see below), whose sum is σ = 223647480. Its totient is φ = 27890688.

The previous prime is 86448721. The next prime is 86448749. The reversal of 86448740 is 4784468.

It can be written as a sum of positive squares in 4 ways, for example, as 29506624 + 56942116 = 5432^2 + 7546^2 .

It is not an unprimeable number, because it can be changed into a prime (86448749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14066 + ... + 19254.

It is an arithmetic number, because the mean of its divisors is an integer number (3106215).

Almost surely, 2^86448740 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 86448740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111823740).

86448740 is an abundant number, since it is smaller than the sum of its proper divisors (137198740).

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

86448740 is a wasteful number, since it uses less digits than its factorization.

86448740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229 (or 5220 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 86448740 is about 9297.7814558098. The cubic root of 86448740 is about 442.1668936986.

The spelling of 86448740 in words is "eighty-six million, four hundred forty-eight thousand, seven hundred forty".