86458788 has 72 divisors (see below), whose sum is σ = 241769528. Its totient is φ = 25878528.

The previous prime is 86458781. The next prime is 86458793. The reversal of 86458788 is 88785468.

It can be written as a sum of positive squares in 4 ways, for example, as 10036224 + 76422564 = 3168^2 + 8742^2 .

It is not an unprimeable number, because it can be changed into a prime (86458781) 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 23 ways as a sum of consecutive naturals, for example, 14820 + ... + 19812.

Almost surely, 2^86458788 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 86458788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120884764).

86458788 is an abundant number, since it is smaller than the sum of its proper divisors (155310740).

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

86458788 is a wasteful number, since it uses less digits than its factorization.

86458788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5048 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The square root of 86458788 is about 9298.3217840640. The cubic root of 86458788 is about 442.1840241616.

The spelling of 86458788 in words is "eighty-six million, four hundred fifty-eight thousand, seven hundred eighty-eight".