78061008 has 80 divisors (see below), whose sum is σ = 214914816. Its totient is φ = 24330240.

The previous prime is 78061003. The next prime is 78061033. The reversal of 78061008 is 80016087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78061001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220960 + ... + 221312.

Almost surely, 2^78061008 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 78061008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107457408).

78061008 is an abundant number, since it is smaller than the sum of its proper divisors (136853808).

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

78061008 is a wasteful number, since it uses less digits than its factorization.

78061008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 78061008 is about 8835.2140890869. The cubic root of 78061008 is about 427.3772350202.

The spelling of 78061008 in words is "seventy-eight million, sixty-one thousand, eight".