678680241 has 8 divisors (see below), whose sum is σ = 934097664. Its totient is φ = 437858160.

The previous prime is 678680237. The next prime is 678680279. The reversal of 678680241 is 142086876.

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

It is not a de Polignac number, because 678680241 - 2² = 678680237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 678680193 and 678680202.

It is not an unprimeable number, because it can be changed into a prime (678680281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648726 + ... + 3648911.

It is an arithmetic number, because the mean of its divisors is an integer number (116762208).

Almost surely, 2^678680241 is an apocalyptic number.

It is an amenable number.

678680241 is a deficient number, since it is larger than the sum of its proper divisors (255417423).

678680241 is a wasteful number, since it uses less digits than its factorization.

678680241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297671.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 678680241 is about 26051.4921069792. The cubic root of 678680241 is about 878.7966683902.

The spelling of 678680241 in words is "six hundred seventy-eight million, six hundred eighty thousand, two hundred forty-one".