78612304 has 10 divisors (see below), whose sum is σ = 152311370. Its totient is φ = 39306144.

The previous prime is 78612283. The next prime is 78612319. The reversal of 78612304 is 40321687.

It can be written as a sum of positive squares in only one way, i.e., 73136704 + 5475600 = 8552^2 + 2340^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2456619 + ... + 2456650.

It is an arithmetic number, because the mean of its divisors is an integer number (15231137).

Almost surely, 2^78612304 is an apocalyptic number.

It is an amenable number.

78612304 is a deficient number, since it is larger than the sum of its proper divisors (73699066).

78612304 is a wasteful number, since it uses less digits than its factorization.

78612304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913277 (or 4913271 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78612304 is about 8866.3579896145. The cubic root of 78612304 is about 428.3809750168.

The spelling of 78612304 in words is "seventy-eight million, six hundred twelve thousand, three hundred four".