78513104 has 20 divisors (see below), whose sum is σ = 152310564. Its totient is φ = 39207168.

The previous prime is 78513067. The next prime is 78513107. The reversal of 78513104 is 40131587.

It can be written as a sum of positive squares in 2 ways, for example, as 33085504 + 45427600 = 5752^2 + 6740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78513107) 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, 12374 + ... + 17610.

Almost surely, 2^78513104 is an apocalyptic number.

It is an amenable number.

78513104 is a deficient number, since it is larger than the sum of its proper divisors (73797460).

78513104 is a wasteful number, since it uses less digits than its factorization.

78513104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182 (or 6176 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 78513104 is about 8860.7620439779. The cubic root of 78513104 is about 428.2007094268.

The spelling of 78513104 in words is "seventy-eight million, five hundred thirteen thousand, one hundred four".