678955430 has 8 divisors (see below), whose sum is σ = 1222119792. Its totient is φ = 271582168.

The previous prime is 678955429. The next prime is 678955447. The reversal of 678955430 is 34559876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33947762 + ... + 33947781.

It is an arithmetic number, because the mean of its divisors is an integer number (152764974).

Almost surely, 2^678955430 is an apocalyptic number.

678955430 is a deficient number, since it is larger than the sum of its proper divisors (543164362).

678955430 is a wasteful number, since it uses less digits than its factorization.

678955430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67895550.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 678955430 is about 26056.7732077477. The cubic root of 678955430 is about 878.9154295205.

The spelling of 678955430 in words is "six hundred seventy-eight million, nine hundred fifty-five thousand, four hundred thirty".