78604180 has 12 divisors (see below), whose sum is σ = 165068820. Its totient is φ = 31441664.

The previous prime is 78604157. The next prime is 78604187. The reversal of 78604180 is 8140687.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57093136 + 21511044 = 7556^2 + 4638^2 .

It is a super-2 number, since 2×78604180² = 12357234226944800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78604187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965085 + ... + 1965124.

It is an arithmetic number, because the mean of its divisors is an integer number (13755735).

Almost surely, 2^78604180 is an apocalyptic number.

It is an amenable number.

78604180 is an abundant number, since it is smaller than the sum of its proper divisors (86464640).

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

78604180 is a wasteful number, since it uses less digits than its factorization.

78604180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930218 (or 3930216 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 78604180 is about 8865.8998415276. The cubic root of 78604180 is about 428.3662178403.

The spelling of 78604180 in words is "seventy-eight million, six hundred four thousand, one hundred eighty".