678807471 has 16 divisors (see below), whose sum is σ = 956355840. Its totient is φ = 427080960.

The previous prime is 678807413. The next prime is 678807491. The reversal of 678807471 is 174708876.

It is not a de Polignac number, because 678807471 - 2⁷ = 678807343 is a prime.

It is a super-3 number, since 3×678807471³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 678807471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678807491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7650 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (59772240).

Almost surely, 2^678807471 is an apocalyptic number.

678807471 is a deficient number, since it is larger than the sum of its proper divisors (277548369).

678807471 is a wasteful number, since it uses less digits than its factorization.

678807471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45566.

The product of its (nonzero) digits is 526848, while the sum is 48.

The square root of 678807471 is about 26053.9338872271. The cubic root of 678807471 is about 878.8515800198.

The spelling of 678807471 in words is "six hundred seventy-eight million, eight hundred seven thousand, four hundred seventy-one".