86452578 has 12 divisors (see below), whose sum is σ = 187313958. Its totient is φ = 28817520.

The previous prime is 86452573. The next prime is 86452601. The reversal of 86452578 is 87525468.

It can be written as a sum of positive squares in only one way, i.e., 63728289 + 22724289 = 7983^2 + 4767^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86452573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2401443 + ... + 2401478.

Almost surely, 2^86452578 is an apocalyptic number.

86452578 is an abundant number, since it is smaller than the sum of its proper divisors (100861380).

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

86452578 is a wasteful number, since it uses less digits than its factorization.

86452578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802929 (or 4802926 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 86452578 is about 9297.9878468408. The cubic root of 86452578 is about 442.1734371193.

The spelling of 86452578 in words is "eighty-six million, four hundred fifty-two thousand, five hundred seventy-eight".