78550752 has 96 divisors (see below), whose sum is σ = 241484544. Its totient is φ = 21888000.

The previous prime is 78550751. The next prime is 78550753. The reversal of 78550752 is 25705587.

It is an interprime number because it is at equal distance from previous prime (78550751) and next prime (78550753).

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 78550752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78550751) 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, 26127 + ... + 28977.

It is an arithmetic number, because the mean of its divisors is an integer number (2515464).

Almost surely, 2^78550752 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 78550752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120742272).

78550752 is an abundant number, since it is smaller than the sum of its proper divisors (162933792).

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

78550752 is a wasteful number, since it uses less digits than its factorization.

78550752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912 (or 2904 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 78550752 is about 8862.8862116130. The cubic root of 78550752 is about 428.2691409940.

The spelling of 78550752 in words is "seventy-eight million, five hundred fifty thousand, seven hundred fifty-two".