78599488 has 56 divisors (see below), whose sum is σ = 172053504. Its totient is φ = 35328000.

The previous prime is 78599471. The next prime is 78599489. The reversal of 78599488 is 88499587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78599489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67713 + ... + 68863.

It is an arithmetic number, because the mean of its divisors is an integer number (3072384).

Almost surely, 2^78599488 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 78599488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86026752).

78599488 is an abundant number, since it is smaller than the sum of its proper divisors (93454016).

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

78599488 is a wasteful number, since it uses less digits than its factorization.

78599488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1261 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The square root of 78599488 is about 8865.6352282281. The cubic root of 78599488 is about 428.3576943992.

Subtracting 78599488 from its reverse (88499587), we obtain a palindrome (9900099).

The spelling of 78599488 in words is "seventy-eight million, five hundred ninety-nine thousand, four hundred eighty-eight".