671413783 has 4 divisors (see below), whose sum is σ = 672361480. Its totient is φ = 670466088.

The previous prime is 671413781. The next prime is 671413819. The reversal of 671413783 is 387314176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671413783 - 2¹ = 671413781 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 (671413781) 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 3 ways as a sum of consecutive naturals, for example, 472785 + ... + 474202.

It is an arithmetic number, because the mean of its divisors is an integer number (168090370).

Almost surely, 2^671413783 is an apocalyptic number.

671413783 is a deficient number, since it is larger than the sum of its proper divisors (947697).

671413783 is an equidigital number, since it uses as much as digits as its factorization.

671413783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947696.

The product of its digits is 84672, while the sum is 40.

The square root of 671413783 is about 25911.6534208066. The cubic root of 671413783 is about 875.6490566013.

The spelling of 671413783 in words is "six hundred seventy-one million, four hundred thirteen thousand, seven hundred eighty-three".