78825760 has 48 divisors (see below), whose sum is σ = 200556216. Its totient is φ = 29104128.

The previous prime is 78825757. The next prime is 78825763. The reversal of 78825760 is 6752887.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78825757) and next prime (78825763).

It can be written as a sum of positive squares in 4 ways, for example, as 22695696 + 56130064 = 4764^2 + 7492^2 .

It is not an unprimeable number, because it can be changed into a prime (78825763) 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, 16869 + ... + 21028.

Almost surely, 2^78825760 is an apocalyptic number.

It is an amenable number.

78825760 is an abundant number, since it is smaller than the sum of its proper divisors (121730456).

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

78825760 is a wasteful number, since it uses less digits than its factorization.

78825760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37925 (or 37917 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 78825760 is about 8878.3872409351. The cubic root of 78825760 is about 428.7683522533.

The spelling of 78825760 in words is "seventy-eight million, eight hundred twenty-five thousand, seven hundred sixty".