78750500 has 48 divisors (see below), whose sum is σ = 172972800. Its totient is φ = 31320800.

The previous prime is 78750481. The next prime is 78750547. The reversal of 78750500 is 505787.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119171 + ... + 119829.

It is an arithmetic number, because the mean of its divisors is an integer number (3603600).

Almost surely, 2^78750500 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 78750500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86486400).

78750500 is an abundant number, since it is smaller than the sum of its proper divisors (94222300).

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

78750500 is a wasteful number, since it uses less digits than its factorization.

78750500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 78750500 is about 8874.1478464132. The cubic root of 78750500 is about 428.6318512692.

The spelling of 78750500 in words is "seventy-eight million, seven hundred fifty thousand, five hundred".