78038700 has 72 divisors (see below), whose sum is σ = 237693120. Its totient is φ = 19713600.

The previous prime is 78038699. The next prime is 78038707. The reversal of 78038700 is 783087.

It is not an unprimeable number, because it can be changed into a prime (78038707) 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 23 ways as a sum of consecutive naturals, for example, 1146 + ... + 12545.

Almost surely, 2^78038700 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 78038700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118846560).

78038700 is an abundant number, since it is smaller than the sum of its proper divisors (159654420).

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

78038700 is a wasteful number, since it uses less digits than its factorization.

78038700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13727 (or 13720 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 78038700 is about 8833.9515506935. The cubic root of 78038700 is about 427.3365196877.

The spelling of 78038700 in words is "seventy-eight million, thirty-eight thousand, seven hundred".