78463305 has 12 divisors (see below), whose sum is σ = 136003140. Its totient is φ = 41847072.

The previous prime is 78463289. The next prime is 78463337. The reversal of 78463305 is 50336487.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13483584 + 64979721 = 3672^2 + 8061^2 .

It is not a de Polignac number, because 78463305 - 2⁴ = 78463289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78463305.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 871770 + ... + 871859.

It is an arithmetic number, because the mean of its divisors is an integer number (11333595).

Almost surely, 2^78463305 is an apocalyptic number.

It is an amenable number.

78463305 is a deficient number, since it is larger than the sum of its proper divisors (57539835).

78463305 is a wasteful number, since it uses less digits than its factorization.

78463305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743640 (or 1743637 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 78463305 is about 8857.9515126241. The cubic root of 78463305 is about 428.1101577606.

The spelling of 78463305 in words is "seventy-eight million, four hundred sixty-three thousand, three hundred five".