678348007 has 8 divisors (see below), whose sum is σ = 697612176. Its totient is φ = 659323392.

The previous prime is 678347963. The next prime is 678348029. The reversal of 678348007 is 700843876.

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

It is not a de Polignac number, because 678348007 - 2¹¹ = 678345959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678348037) 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, 54138 + ... + 65479.

It is an arithmetic number, because the mean of its divisors is an integer number (87201522).

Almost surely, 2^678348007 is an apocalyptic number.

678348007 is a deficient number, since it is larger than the sum of its proper divisors (19264169).

678348007 is a wasteful number, since it uses less digits than its factorization.

678348007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119777.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 678348007 is about 26045.1148394473. The cubic root of 678348007 is about 878.6532460195.

The spelling of 678348007 in words is "six hundred seventy-eight million, three hundred forty-eight thousand, seven".