678344435 has 8 divisors (see below), whose sum is σ = 815904576. Its totient is φ = 541414720.

The previous prime is 678344413. The next prime is 678344453. The reversal of 678344435 is 534443876.

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

It is not a de Polignac number, because 678344435 - 2⁶ = 678344371 is a prime.

It is a Duffinian 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, 155234 + ... + 159543.

It is an arithmetic number, because the mean of its divisors is an integer number (101988072).

Almost surely, 2^678344435 is an apocalyptic number.

678344435 is a deficient number, since it is larger than the sum of its proper divisors (137560141).

678344435 is a wasteful number, since it uses less digits than its factorization.

678344435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315213.

The product of its digits is 967680, while the sum is 44.

The square root of 678344435 is about 26045.0462660368. The cubic root of 678344435 is about 878.6517037654.

The spelling of 678344435 in words is "six hundred seventy-eight million, three hundred forty-four thousand, four hundred thirty-five".