78611276 has 12 divisors (see below), whose sum is σ = 137635680. Its totient is φ = 39286800.

The previous prime is 78611261. The next prime is 78611279. The reversal of 78611276 is 67211687.

It is not an unprimeable number, because it can be changed into a prime (78611279) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9326 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (11469640).

Almost surely, 2^78611276 is an apocalyptic number.

It is an amenable number.

78611276 is a deficient number, since it is larger than the sum of its proper divisors (59024404).

78611276 is a wasteful number, since it uses less digits than its factorization.

78611276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424 (or 9422 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 78611276 is about 8866.3000174819. The cubic root of 78611276 is about 428.3791077198.

It can be divided in two parts, 78611 and 276, that added together give a palindrome (78887).

The spelling of 78611276 in words is "seventy-eight million, six hundred eleven thousand, two hundred seventy-six".