678031414 has 16 divisors (see below), whose sum is σ = 1027855008. Its totient is φ = 335423872.

The previous prime is 678031381. The next prime is 678031427. The reversal of 678031414 is 414130876.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 678031414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143904 + ... + 148540.

It is an arithmetic number, because the mean of its divisors is an integer number (64240938).

Almost surely, 2^678031414 is an apocalyptic number.

678031414 is a deficient number, since it is larger than the sum of its proper divisors (349823594).

678031414 is a wasteful number, since it uses less digits than its factorization.

678031414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 678031414 is about 26039.0363492968. The cubic root of 678031414 is about 878.5165321443.

The spelling of 678031414 in words is "six hundred seventy-eight million, thirty-one thousand, four hundred fourteen".