671409147 has 16 divisors (see below), whose sum is σ = 924549120. Its totient is φ = 433152192.

The previous prime is 671409139. The next prime is 671409163. The reversal of 671409147 is 741904176.

671409147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671409147 - 2³ = 671409139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671409197) 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, 14203 + ... + 39300.

It is an arithmetic number, because the mean of its divisors is an integer number (57784320).

Almost surely, 2^671409147 is an apocalyptic number.

671409147 is a deficient number, since it is larger than the sum of its proper divisors (253139973).

671409147 is a wasteful number, since it uses less digits than its factorization.

671409147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53642.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 671409147 is about 25911.5639628333. The cubic root of 671409147 is about 875.6470411932.

The spelling of 671409147 in words is "six hundred seventy-one million, four hundred nine thousand, one hundred forty-seven".