78545082 has 64 divisors (see below), whose sum is σ = 197074944. Its totient is φ = 20274240.

The previous prime is 78545063. The next prime is 78545087. The reversal of 78545082 is 28054587.

It is a self number, because there is not a number n which added to its sum of digits gives 78545082.

It is not an unprimeable number, because it can be changed into a prime (78545087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90583 + ... + 91445.

It is an arithmetic number, because the mean of its divisors is an integer number (3079296).

Almost surely, 2^78545082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78545082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98537472).

78545082 is an abundant number, since it is smaller than the sum of its proper divisors (118529862).

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

78545082 is a wasteful number, since it uses less digits than its factorization.

78545082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 78545082 is about 8862.5663326149. The cubic root of 78545082 is about 428.2588362149.

The spelling of 78545082 in words is "seventy-eight million, five hundred forty-five thousand, eighty-two".