78104016 has 60 divisors (see below), whose sum is σ = 223930980. Its totient is φ = 25397760.

The previous prime is 78104011. The next prime is 78104017. The reversal of 78104016 is 61040187.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46294416 + 31809600 = 6804^2 + 5640^2 .

It is a super-2 number, since 2×78104016² = 12200474630656512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78104011) 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 11 ways as a sum of consecutive naturals, for example, 711 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (3732183).

Almost surely, 2^78104016 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 78104016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111965490).

78104016 is an abundant number, since it is smaller than the sum of its proper divisors (145826964).

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

78104016 is a wasteful number, since it uses less digits than its factorization.

78104016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284 (or 13275 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 78104016 is about 8837.6476508175. The cubic root of 78104016 is about 427.4557089643.

The spelling of 78104016 in words is "seventy-eight million, one hundred four thousand, sixteen".