678474147 has 32 divisors (see below), whose sum is σ = 1009060416. Its totient is φ = 402854400.

The previous prime is 678474133. The next prime is 678474193. The reversal of 678474147 is 741474876.

It is not a de Polignac number, because 678474147 - 2⁸ = 678473891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 678474096 and 678474105.

It is not an unprimeable number, because it can be changed into a prime (678474127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123397 + ... + 128777.

It is an arithmetic number, because the mean of its divisors is an integer number (31533138).

Almost surely, 2^678474147 is an apocalyptic number.

678474147 is a deficient number, since it is larger than the sum of its proper divisors (330586269).

678474147 is a wasteful number, since it uses less digits than its factorization.

678474147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511.

The product of its digits is 1053696, while the sum is 48.

The square root of 678474147 is about 26047.5362942448. The cubic root of 678474147 is about 878.7077050141.

It can be divided in two parts, 678 and 474147, that added together give a triangular number (474825 = T₉₇₄).

The spelling of 678474147 in words is "six hundred seventy-eight million, four hundred seventy-four thousand, one hundred forty-seven".