678580047 has 6 divisors (see below), whose sum is σ = 980171192. Its totient is φ = 452386692.

The previous prime is 678580039. The next prime is 678580051. The reversal of 678580047 is 740085876.

678580047 is a `hidden beast` number, since 67 + 8 + 580 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 678580047 - 2³ = 678580039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 678579984 and 678580011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678581047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37698883 + ... + 37698900.

Almost surely, 2^678580047 is an apocalyptic number.

678580047 is a deficient number, since it is larger than the sum of its proper divisors (301591145).

678580047 is a wasteful number, since it uses less digits than its factorization.

678580047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75397789 (or 75397786 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 678580047 is about 26049.5690367422. The cubic root of 678580047 is about 878.7534204896.

The spelling of 678580047 in words is "six hundred seventy-eight million, five hundred eighty thousand, forty-seven".