78609168 has 60 divisors (see below), whose sum is σ = 240001008. Its totient is φ = 23820480.

The previous prime is 78609163. The next prime is 78609191. The reversal of 78609168 is 86190687.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78609163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23230 + ... + 26397.

Almost surely, 2^78609168 is an apocalyptic number.

It is an amenable number.

78609168 is an abundant number, since it is smaller than the sum of its proper divisors (161391840).

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

78609168 is a wasteful number, since it uses less digits than its factorization.

78609168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49652 (or 49643 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 78609168 is about 8866.1811395888. The cubic root of 78609168 is about 428.3752786201.

It can be divided in two parts, 7 and 8609168, that added together give a triangular number (8609175 = T₄₁₄₉).

The spelling of 78609168 in words is "seventy-eight million, six hundred nine thousand, one hundred sixty-eight".