78486582 has 8 divisors (see below), whose sum is σ = 156973176. Its totient is φ = 26162192.

The previous prime is 78486553. The next prime is 78486589. The reversal of 78486582 is 28568487.

It is a sphenic number, since it is the product of 3 distinct primes.

78486582 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78486589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6540543 + ... + 6540554.

It is an arithmetic number, because the mean of its divisors is an integer number (19621647).

Almost surely, 2^78486582 is an apocalyptic number.

78486582 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78486582 is a wasteful number, since it uses less digits than its factorization.

78486582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13081102.

The product of its digits is 860160, while the sum is 48.

The square root of 78486582 is about 8859.2653194269. The cubic root of 78486582 is about 428.1524880996.

The spelling of 78486582 in words is "seventy-eight million, four hundred eighty-six thousand, five hundred eighty-two".