78677606 has 32 divisors (see below), whose sum is σ = 139503168. Its totient is φ = 32578560.

The previous prime is 78677603. The next prime is 78677611. The reversal of 78677606 is 60677687.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78677603) 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 15 ways as a sum of consecutive naturals, for example, 64256 + ... + 65468.

It is an arithmetic number, because the mean of its divisors is an integer number (4359474).

Almost surely, 2^78677606 is an apocalyptic number.

78677606 is a deficient number, since it is larger than the sum of its proper divisors (60825562).

78677606 is a wasteful number, since it uses less digits than its factorization.

78677606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 78677606 is about 8870.0397969795. The cubic root of 78677606 is about 428.4995586256.

The spelling of 78677606 in words is "seventy-eight million, six hundred seventy-seven thousand, six hundred six".