78579016 has 16 divisors (see below), whose sum is σ = 147478140. Its totient is φ = 39251520.

The previous prime is 78579013. The next prime is 78579029. The reversal of 78579016 is 61097587.

It can be written as a sum of positive squares in 2 ways, for example, as 55442916 + 23136100 = 7446^2 + 4810^2 .

It is not an unprimeable number, because it can be changed into a prime (78579013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5290 + ... + 13606.

Almost surely, 2^78579016 is an apocalyptic number.

It is an amenable number.

78579016 is a deficient number, since it is larger than the sum of its proper divisors (68899124).

78579016 is a wasteful number, since it uses less digits than its factorization.

78579016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504 (or 9500 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 78579016 is about 8864.4805826399. The cubic root of 78579016 is about 428.3205011961.

The spelling of 78579016 in words is "seventy-eight million, five hundred seventy-nine thousand, sixteen".