678373424 has 10 divisors (see below), whose sum is σ = 1314348540. Its totient is φ = 339186704.

The previous prime is 678373391. The next prime is 678373441. The reversal of 678373424 is 424373876.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21199154 + ... + 21199185.

It is an arithmetic number, because the mean of its divisors is an integer number (131434854).

Almost surely, 2^678373424 is an apocalyptic number.

It is an amenable number.

678373424 is a deficient number, since it is larger than the sum of its proper divisors (635975116).

678373424 is a wasteful number, since it uses less digits than its factorization.

678373424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42398347 (or 42398341 counting only the distinct ones).

The product of its digits is 677376, while the sum is 44.

The square root of 678373424 is about 26045.6027766685. The cubic root of 678373424 is about 878.6642199593.

The spelling of 678373424 in words is "six hundred seventy-eight million, three hundred seventy-three thousand, four hundred twenty-four".