678673297 has 8 divisors (see below), whose sum is σ = 700922880. Its totient is φ = 656446080.

The previous prime is 678673241. The next prime is 678673301. The reversal of 678673297 is 792376876.

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

It is not a de Polignac number, because 678673297 - 2⁷ = 678673169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678677297) 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, 74529 + ... + 83137.

It is an arithmetic number, because the mean of its divisors is an integer number (87615360).

Almost surely, 2^678673297 is an apocalyptic number.

It is an amenable number.

678673297 is a deficient number, since it is larger than the sum of its proper divisors (22249583).

678673297 is a wasteful number, since it uses less digits than its factorization.

678673297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183.

The product of its digits is 5334336, while the sum is 55.

The square root of 678673297 is about 26051.3588321224. The cubic root of 678673297 is about 878.7936712080.

The spelling of 678673297 in words is "six hundred seventy-eight million, six hundred seventy-three thousand, two hundred ninety-seven".