678011347 has 8 divisors (see below), whose sum is σ = 749900816. Its totient is φ = 608941152.

The previous prime is 678011317. The next prime is 678011407. The reversal of 678011347 is 743110876.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678011347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678011317) 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, 704313 + ... + 705274.

It is an arithmetic number, because the mean of its divisors is an integer number (93737602).

Almost surely, 2^678011347 is an apocalyptic number.

678011347 is a deficient number, since it is larger than the sum of its proper divisors (71889469).

678011347 is a wasteful number, since it uses less digits than its factorization.

678011347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409637.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 678011347 is about 26038.6510211263. The cubic root of 678011347 is about 878.5078652080.

The spelling of 678011347 in words is "six hundred seventy-eight million, eleven thousand, three hundred forty-seven".