78674648 has 32 divisors (see below), whose sum is σ = 159494160. Its totient is φ = 36167040.

The previous prime is 78674641. The next prime is 78674653. The reversal of 78674648 is 84647687.

It is a junction number, because it is equal to n+sod(n) for n = 78674596 and 78674605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78674641) 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 7 ways as a sum of consecutive naturals, for example, 27443 + ... + 30173.

Almost surely, 2^78674648 is an apocalyptic number.

It is an amenable number.

78674648 is an abundant number, since it is smaller than the sum of its proper divisors (80819512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78674648 is a wasteful number, since it uses less digits than its factorization.

78674648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027 (or 3023 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The square root of 78674648 is about 8869.8730543340. The cubic root of 78674648 is about 428.4941885351.

The spelling of 78674648 in words is "seventy-eight million, six hundred seventy-four thousand, six hundred forty-eight".